COBHAM C406-N Series Abbreviated Component Maintenance Manual

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Page 1 of 110

JAN 24/11

570-5060 Rev. F

Initial Issue MAY 12/2003

Wulfsberg Electronics Division

6400 Wilkinson Rd., Prescott, AZ 86301

Cage Code: 1B7G3

Abbreviated Component Maintenance Manual

This manual includes data for the equipment that follows:

Component Part No. Model No.

C406-N SERIES

EMERGENCY LOCATOR TRANSMITTER

Emergency Locator Transmitter 453-5060 C406-N

Emergency Locator Transmitter 453-5061 C406-N HM

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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PROPRIETARY INFORMATION

This document contains proprietary information and such information may not be disclosed to others for any

purpose, nor used for manufacturing purposes without written permission from Wulfsberg Electronics.

Information in this manual is subject to change without notice. Wulfsberg Electronics makes no warranty,

expressed or implied, with regard to this manual, including but not limited to any implied warranties of mer-

chantability, fitness for a particular purpose, and non-infringement. In addition, Wulfsberg Electronics makes

no warranty with regard to the documentation or data contained herein. Wulfsberg Electronics is not liable in

the event of incidentals, special, consequential, or any other damages in connection with or arising from fur-

nishing, performance, or use of this manual.

Reproduction of this publication or any portion thereof by any means is prohibited. for further information con-

tact Sales, Wulfsberg Electronics, 6400 Wilkinson Drive, Prescott, Arizona, 86301. Telephone (928) 708-1550

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

RECORD OF REVISIONS

REV NO. DCN NO. DCN DATE REV NO. DCN NO. DCN DATE

- RELEASE May 12/2003

A DCN 2227 Jul 11/2003

A DCN 2273 Sep 08/2003

B DCN 2380 Mar 22/2004

C DCN 2444 Aug 05/2004

C DCN 2730 Mar 09/2006

C DCN 2870 Oct 05/2006

D DCN 2961 Mar 13/2007

D DCN 2968 Mar 20/2007

E DCA W9414 Apr 06/2010

F DCA W10827 Jan 24/2011

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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THIS IS A BLANK PAGE

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

SERVICE BULLETIN LIST

SERVICE

BULLETIN NO

ISSUE

DATE

SUBJECT

MANUAL

REV NO

MANUAL

REV DATE

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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THIS IS A BLANK PAGE

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

LIST OF EFFECTIVE PAGES

SUBJECT PAGE DATE SUBJECT PAGE DATE

Title Page 1 Jan 24/11 Description and Operation 30 Jan 24/11

Notices 2 Jan 24/11 (cont.) 31 Jan 24/11

Record of Revisions 3 Jan 24/11 32 Jan 24/11

4 BLANK 33 Jan 24/11

Service Bulletin List 5 Jan 24/11 34 Jan 24/11

6 Jan 24/11 35 Jan 24/11

List of Effective Pages 7 Jan 24/11 36 Jan 24/11

8 Jan 24/11 37 Jan 24/11

Table of Contents 9 Jan 24/11 38 Jan 24/11

10 Jan 24/11 Test and Fault Isolation 39 Jan 24/11

11 Jan 24/11 40 Jan 24/11

12 Jan 24/11 41 Jan 24/11

13 Jan 24/11 42 Jan 24/11

14 BLANK 43 Jan 24/11

List of Figures 15 Jan 24/11 44 Jan 24/11

16 Jan 24/11 45 Jan 24/11

Introduction 17 Jan 24/11 46 Jan 24/11

18 Jan 24/11 47 Jan 24/11

19 Jan 24/11 48 Jan 24/11

20 Jan 24/11 49 Jan 24/11

21 Jan 24/11 50 Jan 24/11

22 Jan 24/11 51 Jan 24/11

23 Jan 24/11 52 Jan 24/11

24 Jan 24/11 Removal 53 Jan 24/11

25 Jan 24/11 54 Jan 24/11

26 Jan 24/11 55 Jan 24/11

27 Jan 24/11 56 BLANK

28 BLANK Installation 57 Jan 24/11

Description and Operation 29 Jan 24/11 58 Jan 24/11

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

25-62-13

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Installation (cont.) 59 Jan 24/11 Appendix B (cont.) 89 Jan 24/11

60 Jan 24/11 90 BLANK

61 Jan 24/11 Appendix C 91 Jan 24/11

62 Jan 24/11 92 Jan 24/11

63 Jan 24/11 93 Jan 24/11

64 Jan 24/11 94 Jan 24/11

65 Jan 24/11 95 Jan 24/11

66 Jan 24/11 96 Jan 24/11

67 Jan 24/11 97 Jan 24/11

68 Jan 24/11 98 Jan 24/11

69 Jan 24/11 99 Jan 24/11

70 Jan 24/11 100 Jan 24/11

71 Jan 24/11 Illustrated Parts List 101 Jan 24/11

72 Jan 24/11 102 Jan 24/11

73 Jan 24/11 103 Jan 24/11

74 Jan 24/11 104 Jan 24/11

75 Jan 24/11 105 Jan 24/11

76 Jan 24/11 106 Jan 24/11

77 Jan 24/11 107 Jan 24/11

78 Jan 24/11 108 Jan 24/11

79 Jan 24/11 109 Jan 24/11

80 Jan 24/11 110 BLANK

81 Jan 24/11

82 Jan 24/11

Appendix A 83 Jan 24/11

84 Jan 24/11

Appendix B 85 Jan 24/11

86 Jan 24/11

87 Jan 24/11

88 Jan 24/11

SUBJECT PAGE DATE SUBJECT PAGE DATE

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

TABLE OF CONTENTS

RECORD OF REVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SERVICE BULLETIN LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

LIST OF EFFECTIVE PAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

LIST OF FIGURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

INTRODUCTION

1. Manual Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

A. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

B. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2. Model Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

A. C406-N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

B. C406-N HM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3. Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

A. C406-N and C406-N HM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

B. Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

C. RTCA DO-160D Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 1. Environmental Categories Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4. Frequency Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

A. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

B. Discussion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5. List of Acronyms, Abbreviations, and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

A. Regulatory Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

B. Other Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

DESCRIPTION AND OPERATION

1. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

A. Functional Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

B. Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

A. Operational Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

B. Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

C. Manual Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

D. ELT Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

E. Functional Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

A. Environmental and Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Table 2. Environmental and Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

B. Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 3. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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C. Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 4. Antenna Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

TEST AND FAULT ISOLATION

1. Inspection and Test Regulatory Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

A. United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

B. Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

C. Other Countries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2. Inspection and Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

A. Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 5. ELT Inspection and Test Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

B. Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

C. Coax Cable and Wiring Connections Inspection – Item 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

D. ELT Mounting Tray and Hardware Inspection – Item 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

E. Battery Pack Inspection – Item 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

F. G-Switch Functional Check – Item 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

G. Performance Testing Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

H. 121.5 MHz Frequency Measurement – Item 5a. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

I. Audio Modulation Check – Item 5b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

J. 121.5/243.0 MHz Power Output Measurement – Item 5c. . . . . . . . . . . . . . . . . . . . . . . . . . . 45

K. 406 MHz Frequency Measurement – Item 5d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

L. 406 MHz Power Output Measurement – Item 5e. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

M. Current Draw Test – Item 5f . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

N. Digital Message Verification – Item 5g. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

O. ELT Reset Check – Item 5h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

P. Installed Transmitter Test – Item 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Q. Antenna Test – Item 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

R. Inspection and Test Documentation – Item 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3. Fault Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

A. Self-Test Error Troubleshooting Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Table 6. ELT Self-Test Error Codes Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . 50

B. ELT Troubleshooting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Table 7. ELT Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

REMOVAL

1. ELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

A. ELT Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

2. Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

A. Battery Pack Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3. Material or Equipment Return. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

A. Shipment Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

B. Return Material Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

INSTALLATION

1. Regulatory Requirements and Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

A. TSO C126, Paragraph D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

B. FAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

C. Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

D. Other Countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

E. RTCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

2. Mounting Tray. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

B. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3. Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

A. Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

B. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

C. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

4. Remote Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

A. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

B. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

5. Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

A. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

B. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

6. Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

A. General Considerations and Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

B. Remote Switch Harness Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

C. ELT 22-Pin Plug Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

D. Cockpit Remote Switch 9-Pin Plug Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

E. Wiring Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

F. Antenna Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

G. Cockpit Remote Switch Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

H. ELT Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

I. Airframe Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

J. Buzzer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

K. Remote Switch Final Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

7. ELT Installation and Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

A. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

B. Post-Installation Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

C. Installation Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

8. Battery Pack Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

A. Battery Reinstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

B. New Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

9. Helicopter Installations - Special Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

A. Background. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

B. Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

C. Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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APPENDIX A – ELT REGISTRATION

1. Background Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

A. Hex ID Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

B. Reason for Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

C. Registration Information Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

2. Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

A. Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

B. Required Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

C. Where to Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

APPENDIX B – PROGRAMMING ADAPTER OPTION

1. Description and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

A. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

B. Physical Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

C. PA Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

D. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

2. Installation and Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

A. Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

B. Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

C. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

D. Aircraft ID Verification Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

APPENDIX C – REMOTE SWITCH CONTROL PANEL OPTION

1. Description and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

A. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

B. Control Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

C. Modified Buzzer Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

D. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

2. Remote Switch Control Panel Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

A. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

B. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

3. Modified Buzzer Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

A. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

B. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

4. Wiring and Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

A. Remote Switch Control Panel Wiring Fabrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

B. Modified Buzzer Wiring Fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

C. Remote Switch Control Panel Wiring Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

D. Modified Buzzer Wiring Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

E. Standard Buzzer Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

F. Remote Switch Control Panel Final Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

G. Remote Switch Control Panel Functional Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

ILLUSTRATED PARTS LIST

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

A. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

B. IPL Usage Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

2. Manufacturer Name and Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

A. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

3. Explanation of Detailed Parts List Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

A. Fig # & Item Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

B. Part # Column. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

C. Nomenclature Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

D. UPA (Units Per Assembly) Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

4. Detailed Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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THIS IS A BLANK PAGE

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

LIST OF FIGURES

Figure 1. ELT Orthogonal Axes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 2. C406-N Series ELT and Mounting Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 3. Cockpit Remote Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 4. Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 5. Battery Pack Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 6. Rod and Whip Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 7. Blade Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 8. ELT Operational Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 9. Performance Tests Equipment Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 10. Current Draw Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 11. Long 406 MHz Message Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 12. ELT Removal Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 13. Battery Pack Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Figure 14. C406-N Series ELT Outline and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 15. Typical Mounting Tray Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 16. Rod Antenna 110-338 and Whip Antenna 110-343 Outlines and Dimensions . . . . . . . . . . . . . 63

Figure 17. Blade Antennas 110-340 and 110-341 Outlines and Dimensions . . . . . . . . . . . . . . . . . . . . . . 64

Figure 18. Remote Switch Outline and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Figure 19. Buzzer Outline and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Figure 20. Remote Switch Harness Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Figure 21. Remote Switch Harness Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 22. Harness ELT 22-Pin Plug Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 23. ELT Installation Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figure 24. Battery Pack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Figure 25. Battery Pack Screw Tightening Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Figure 26. ELT Orthogonal Axes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Figure 27. Orientation of ELT for Helicopter Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Figure 28. Programming Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 29. Programming Adapter Interface Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Figure 30. Programming Adapter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Figure 31. Remote Switch Control Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Figure 32. Cockpit Remote Switch Panel Outline and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Figure 33. Modified Buzzer Outline and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Figure 34. Remote Switch Control Panel Wiring Diagram (130-4005 Modified Buzzer) . . . . . . . . . . . . . . 96

Figure 35. Remote Switch Control Panel Wiring Diagram (130-4004 Buzzer) . . . . . . . . . . . . . . . . . . . . . 99

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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Illustrated Parts List

Figure 36. C406-N Series ELT Main Assembly and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

Figure 37. Electrical Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

Figure 38. Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

INTRODUCTION

TASK 25-62-13-990-801

1. Manual Usage

SUBTASK 25-62-13-990-001

A. General

(1) This manual describes the operation, installation, and maintenance of the Model C406-N

Series emergency locator transmitter (ELT). The information is provided to ensure initial and

continued airworthiness. Information presented in this manual is accurate at time of printing,

but is subject to change. Refer to the Artex web site at www.artex.net for the latest

information and any updates to this manual.

(2) Information on COSPAS-SARSAT emergency locator beacon registration requirements and

procedures is provided in Appendix A – ELT Registration, on page 83.

(3) Web links provided in this manual were accurate at time of printing but may be subject to

change.

(4) Wulfsberg Electronics reserves the right to add approved components to the ELT system;

including, but not limited to antennas, remote switches, and coaxial cables.

(5) Regulatory references contained herein are generally confined to United States and Canadian

requirements and, in any case, should not be considered all encompassing. Consult your

national aviation authority for applicable requirements.

SUBTASK 25-62-13-990-002

B. Application

(1) This manual constitutes supporting data/documentation for the C406-N Series ELT, including:

(a) Description and Operation

(b) Test and Fault Isolation (includes inspection criteria)

(c) Removal

(d) Installation

(e) Registration

(f) Illustrated Parts List

(2) In the United States, the C406-N Series ELT must be installed and maintained in accordance

with the requirements herein and 14 CFR, FAR Parts 43, and 91; and other airworthiness

requirements, as applicable.

(3) In Canada, the C406-N Series ELT must be installed and maintained in accordance with the

requirements herein and Canadian Aviation Regulations (CAR), Part V, Paragraph 551.104 and

other CAR airworthiness requirements, as applicable.

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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(4) C406-N Series ELT installation and maintenance in all other countries must comply with the

requirements herein and applicable national airworthiness requirements.

(5) The accessories (i.e., remote switch and antennas) addressed in this manual are the

accessories most commonly associated with the C406-N Series ELT. Other options, such as a

different remote switch configuration, should be installed and maintained in accordance with

the written instructions specific to the accessory.

NOTE: Contact Wulfsberg Electronics for optional accessories approved for use with a C406-

N Series ELT.

(6) To ensure proper operation, only parts listed in the Illustrated Parts List of this manual or

those recommended by Wulfsberg Electronics may be used as replacement parts for the

C406-N Series ELT.

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COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

TASK 25-62-13-990-802

2. Model Descriptions

SUBTASK 25-62-13-990-001

A. C406-N

(1) The C406-N is a type AF (Automatic Fixed) ELT, which transmits on 121.5, 243.0, and 406

MHz.

(2) The ELT is enclosed within a multi-piece mounting frame consisting of a mounting tray,

protective top cover and mounting frame cap.

(3) When ordered as a system, an installation kit, cockpit remote switch, coax cable, audible

buzzer, and single input antenna are provided.

SUBTASK 25-62-13-990-002

B. C406-N HM

(1) The C406-N HM ELT was developed for helicopter installations and features an additional 5-

axis G-Switch module, which allows the ELT to be activated in any of the six orthogonal axes.

See "Figure 1. ELT Orthogonal Axes".

(2) The C406-N HM ELT is identical to the C406-N ELT in all other aspects.

Figure 1. ELT Orthogonal Axes

-X

+X

+Z

-Z

FWD

-Y

+Y

COBHAM AVIONICS WULFSBERG ELECTRONICS

ABBREVIATED COMPONENT MAINTENANCE MANUAL

C406-N (453-5060), C406-N HM (453-5061)

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TASK 25-62-13-990-803

3. Approvals

SUBTASK 25-62-13-990-001

A. C406-N and C406-N HM

(1) FAA TSO C126, Type AF

NOTE: Details of TSO certification for the C406-N Series ELT are available in the “C406-N

TSO Report” (572-0022).

(a) The conditions and tests required for TSO approval of this article are minimum

performance standards. It is the responsibility of those installing this article either on or

within a specific type or class of aircraft to determine that the aircraft installation

conditions are within TSO standards. TSO articles must have separate approval for

installation in an aircraft. The article may be installed only if performed under 14 CFR

Part 43 or the applicable airworthiness requirements.

(2) Transport Canada - Type Certificate Data Sheet AP-56

(3) Industry Canada - Certification Number 1215B-C406N AF

(4) ETSO-2C126

(5) COSPAS-SARSAT - Certificate No. 135

SUBTASK 25-62-13-990-002

B. Battery

CAUTION: LITHIUM BATTERY SAFETY CONCERNS INCLUDE THE POSSIBILITY OF FIRE, VENTING

VIOLENTLY, AND VENTING OF TOXIC GASES.

(1) The lithium battery pack used on the C406-N Series ELT is certified under TSO C142.

NOTE: Details of TSO certification are available in the “452-0133 - 406 Lithium Battery Pack

TSO C142 Report” (572-0043).

(a) The conditions and tests required for TSO approval of this battery are minimum

performance standards. It is the responsibility of those desiring to install this battery in a

specific type or class of aircraft to determine that the aircraft installation conditions are

within the TSO standards. The battery may be installed only if further evaluation by

applicant documents an acceptable installation and is approved by the Administrator.

SUBTASK 25-62-13-990-003

C. RTCA DO-160D Compliance

(1) DO-160D Environmental Categories: [D1]XBC[B204][204]XRXXXXXZAZZ[204]H[XXXX]XXX

(2) The DO-160D environmental categories breakdown is detailed in Table 1, on page 21.

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COBHAM C406-N Series Abbreviated Component Maintenance Manual

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COBHAM C406-N Series Abbreviated Component Maintenance Manual

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