COBHAM ELT/NAV INTERFACE Abbreviated Component Maintenance Manual

Type
Abbreviated Component Maintenance Manual
25-69-10
Page 1 of 58
APR 06/10
570-4602 Rev. F
Initial Issue FEB 10/1998
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.
ELT/NAV
INTERFACE
ELT/NAV Interface 453-6500 N/A
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
453-6500
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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
©2010 Wulfsberg Electronics. All rights reserved.
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COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
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RECORD OF REVISIONS
REV NO. DCN NO. DCN DATE REV NO. DCN NO. DCN DATE
- RELEASE Feb 10/1998
A ECO 811 Apr/24/1998
B ECO 887 Jul 23/1998
B ECO 948 Oct 14/1998
C ECO 1167 Oct 15/1999
D ECO 1394 May 15/2000
D DCN 1748 Jul 19/2001
D DCN 1791 Sep 19/2001
E DCN 1848 Nov 26/2001
E DCN 1968 Apr 12/2002
E DCN 2033 Jun 18/2002
E DCN 2702 Jan 23/2006
F DCA W9414 Apr 06/2010
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SERVICE BULLETIN LIST
SERVICE
BULLETIN NO
ISSUE
DATE
SUBJECT
MANUAL
REV NO
MANUAL
REV DATE
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COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
453-6500
LIST OF EFFECTIVE PAGES
SUBJECT PAGE DATE SUBJECT PAGE DATE
Title Page 1 Apr 06/10 30 Apr 06/10
Notices 2 Apr 06/10 Test and Fault Isolation 31 Apr 06/10
Record of Revisions 3 Apr 06/10 32 Apr 06/10
4 BLANK 33 Apr 06/10
Service Bulletin List 5 Apr 06/10 34 Apr 06/10
6 BLANK 35 Apr 06/10
List of Effective Pages 7 Apr 06/10 36 Apr 06/10
8 BLANK 37 Apr 06/10
Table of Contents 9 Apr 06/10 38 Apr 06/10
10 Apr 06/10 Removal 39 Apr 06/10
11 Apr 06/10 40 Apr 06/10
12 BLANK Installation 41 Apr 06/10
List of Figures 13 Apr 06/10 42 Apr 06/10
14 BLANK 43 Apr 06/10
Introduction 15 Apr 06/10 44 Apr 06/10
16 Apr 06/10 45 Apr 06/10
17 Apr 06/10 46 Apr 06/10
18 Apr 06/10 47 Apr 06/10
19 Apr 06/10 48 Apr 06/10
20 Apr 06/10 49 Apr 06/10
21 Apr 06/10 50 Apr 06/10
22 Apr 06/10 51 Apr 06/10
Description and Operation 23 Apr 06/10 52 BLANK
24 Apr 06/10 Illustrated Parts List 53 Apr 06/10
25 Apr 06/10 54 Apr 06/10
26 Apr 06/10 55 Apr 06/10
27 Apr 06/10 56 Apr 06/10
28 Apr 06/10 57 Apr 06/10
29 Apr 06/10 58 Apr 06/10
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TABLE OF CONTENTS
RECORD OF REVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SERVICE BULLETIN LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
LIST OF EFFECTIVE PAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LIST OF FIGURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
INTRODUCTION
1. Manual Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
A. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
B. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2. Model Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
A. ELT/NAV Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
B. Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 1. ELT Compatibility List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3. Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
A. Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
B. RTCA DO-160C Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 2. Environmental Categories Breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4. List of Acronyms, Abbreviations, and Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
A. Regulatory Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
B. Other Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DESCRIPTION AND OPERATION
1. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
A. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
B. Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
C. Position Data Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
D. 24-Bit Address Reprogramming Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2. Navigation System Interface Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
A. ARINC 429 Latitude and Longitude Data Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
B. RS-232 Latitude and Longitude Data Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
A. Position Data Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
B. 24-Bit Address Reprogramming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
A. Physical and Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 3. Physical and Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
B. Input/Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 4. Input/Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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C. Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 5. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
TEST AND FAULT ISOLATION
1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
A. Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
B. Regulatory Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2. Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
A. Inspection Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3. Periodic Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
A. Position Data ELT Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4. Post-Installation Functional Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
A. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
B. Position Data Verification Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
C. 24-Bit Address Reprogramming Verification Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5. Post-Reprogramming Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
A. 15-Digit Hex ID Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6. Fault Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
A. Troubleshooting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 6. Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
REMOVAL
1. ELT/NAV Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
A. Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
2. Material or Equipment Return. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
A. Shipment Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
B. Return Material Authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
INSTALLATION
1. Regulatory Requirements and Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
A. Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
B. TSO C126, Paragraph D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
C. FAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
D. Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
E. Other Countries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
F. RTCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2. Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
A. Chassis Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
B. Chassis Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3. Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
A. General Considerations and Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
B. ELT and Navigation System Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
C. 24-Bit Address Reprogramming – Hard Wire Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
D. 24-Bit Address Reprogramming – Switch Block Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
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ILLUSTRATED PARTS LIST
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
A. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
B. IPL Usage Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
2. Manufacturer Name and Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
A. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3. Explanation of Detailed Parts List Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
A. Fig # & Item Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
B. Part # Column. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
C. Nomenclature Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
D. UPA (Units Per Assembly) Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4. Detailed Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
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LIST OF FIGURES
Figure 1. ELT/NAV Interface System Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 2. ELT/NAV Interface Isometric View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 3. Examples of Location Protocol 406 MHz Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 4. 406 MHz Location Message without Position Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 5. ELT/NAV Interface Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 6. ELT/NAV Interface Outline and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 7. ELT/NAV Interface Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 8. ELT/NAV Interface Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 9. Wiring Installation at ELT End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 10. ELT/NAV Interface Wiring Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 11. Octal/Hexadecimal to Binary Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Illustrated Parts List
Figure 12. ELT/NAV Interface Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 13. Electrical Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
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INTRODUCTION
TASK 25-69-10-990-801
1. Manual Usage
SUBTASK 25-69-10-990-001
A. General
(1) This manual describes the operation, installation, and maintenance of the ELT/NAV Interface.
This 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) Web links provided in this manual were accurate at time of printing but may be subject to
change.
(3) 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 25-69-10-990-002
B. Application
(1) This manual constitutes supporting data/documentation for the ELT/NAV Interface, including:
(a) Description and Operation
(b) Test and Fault Isolation (includes inspection criteria)
(c) Removal
(d) Installation
(e) Illustrated Parts List
(2) In the United States, the ELT/NAV Interface 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 ELT/NAV Interface must be installed and maintained in accordance with the
requirements herein and Canadian Aviation Regulations (CAR), Part V and other CAR
airworthiness requirements, as applicable.
(4) ELT/NAV Interface installation and maintenance in all other countries must comply with the
requirements herein and applicable national airworthiness requirements.
(5) 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 ELT/
NAV Interface.
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TASK 25-69-10-990-802
2. Model Description
SUBTASK 25-69-10-990-001
A. ELT/NAV Interface
(1) The ELT/NAV Interface provides the means to transmit position data received from the aircraft
navigation system to the ELT.
(2) The ELT/NAV Interface is available in two installation configurations:
(a) 24-bit auto reprogramming and position data, or
(b) Position data only.
SUBTASK 25-69-10-990-002
B. Compatibility
(1) Table 1 lists the ELTs compatible with the ELT/NAV Interface.
Table 1. ELT Compatibility List
ELT MODEL
NUMBER
PART NUMBER
110-406 NAV* 453-0421
110-406HM NAV* 453-0422
110-406ED NAV* 453-0424
B406-2* 453-0003
C406-1 453-5002
C406-1HM 453-5003
C406-2 453-5000
C406-2HM 453-5001
B406-4 453-5004
G406-4 453-5012
G406-1* 453-5100
G406-2* 453-5102
*Discontinued Product
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COBHAM AVIONICS WULFSBERG ELECTRONICS
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3. Approvals
SUBTASK 25-69-10-990-001
A. Certification
(1) FAA TSO C126 System Component
NOTE
: Details of TSO certification for the ELT/NAV Interface are available in the “TSO
Qualification Test Report for the ELT/NAV Interface System” (Document 6288).
(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) JTSO-2C126
SUBTASK 25-69-10-990-002
B. RTCA DO-160C Compliance
(1) DO-160C Environmental Categories: C1-204A204204XRXXXXXBABA204BXXX
(2) A breakdown of the DO-160C environmental categories is provided in Table 2.
Table 2. Environmental Categories Breakdown
CATEGORY SECTION DESCRIPTION
C1 4.0 Temperature/Altitude
- 4.5.4 In-Flight Loss of Cooling
204 5.0 Temperature Variation
A6.0 Humidity
204 7.0 Shock
204 8.0 Vibration
X 9.0 Explosion
R 10.0 Waterproofness
X 11.0 Fluids Susceptibility
X 12.0 Sand and Dust
X 13.0 Fungus
X 14.0 Salt Spray
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X 15.0 Magnetic Effect
B 16.0 Power Input
A 17.0 Voltage Spike
B 18.0 Audio Frequency Susceptibility
A 19.0 Induced Signal Susceptibility
204 20.0 Radio Frequency Susceptibility
B 21.0 Emission of Radio Frequency Energy
X 22.0 Lightning
X 23.0 Lightning Direct Effects
X 24.0 Icing
CATEGORY SECTION DESCRIPTION
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TASK 25-69-10-990-804
4. List of Acronyms, Abbreviations, and Definitions
SUBTASK 25-69-10-990-001
Term
Definition
AC Advisory Circular – A Federal Aviation Administration (USA) bulletin
with special information. For the purposes of this document, the acro-
nym AC does not refer to electrical alternating current.
AWG American Wire Gauge – An electrical wire diameter standard. Look for
this acronym in front of or following a wire size number.
CAR Canadian Aviation Regulations – The rules and regulations governing
the manufacture, certification, operation, maintenance, and alteration
of aircraft in Canada.
CFR Code of Federal Regulations – The general and permanent rules pub-
lished in the Federal Register by the executive departments and
agencies of the Federal Government. Title 14, “Aeronautics and
Space” contains the FARs.
COSPAS-SARSAT The international search and rescue consortium that governs the
international satellite-based search and rescue distress alert detection
and information distribution system. For a complete description go to
the official web site for the International COSPAS-SARSAT Program.
DER Designated Engineering Representative – An individual qualified and
designated by the FAA to approve, or recommend approval, of tech-
nical data to the FAA.
DRIP LOOP Extra wire length used to form a U-shaped bend in a wire or cable.
Water or other fluids will flow down to the bottom of the loop and
drip off. Electrical connections are made at the top of the loop.
ELT Emergency Locator Transmitter – ELTs are installed on aircraft and
used to send emergency signals to the SAR satellite system. The
word “Beacon” is associated with these devices.
EMI Electromagnetic Interference – An undesirable disturbance that
affects an electrical circuit due to either electromagnetic conduction
or electromagnetic radiation emitted from an external source. Also
called radio frequency interference or RFI.
EUROCAE European Organization for Civil Aviation Equipment – EUROCAE docu-
ments are widely referenced as a means of compliance to European
Technical Standard Orders (ETSOs) and other regulatory documents.
FAA Federal Aviation Administration – The United States government
agency for aircraft safety and regulation.
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FAR Federal Aviation Regulations – The rules and regulations governing
the manufacture, certification, operation, maintenance, repair, and
alteration of aircraft in the United States.
FORM 337 FAA Form 337 is required anytime a major repair and/or major altera-
tion is performed on an aircraft. Refer to FAR, Part 43, Appendix A
and the definitions of Major Repair/Alteration contained in FAR, Part 1
for guidance.
FSDO Flight Standards District Office – FAA district offices responsible for
aircraft certification, operation, maintenance, and modification issues,
approvals and enforcement.
MIL The three-letter acronym that stands for “Military” and proceeds mili-
tary specifications and standards numbers (e.g., MIL-W-xxxx would
indicate a wire specification and MIL-STD-xxxx would indicate a stan-
dard).
P/N Part Number – Refers to an Wulfsberg Electronics part number,
unless otherwise noted. Part numbers are also indicated with paren-
theses (e.g., XXX-XXXX).
PLUG The term “Plug”, within the context of this document, refers to the
male half of an electrical connector.
RECEPTACLE The term “Receptacle”, within the context of this document, refers to
the female half of an electrical connector.
RTCA Radio Technical Commission for Aeronautics – Organization that
makes recommendations for airworthiness. Refer to http://
www.rtca.org/aboutrtca.asp for more information.
SAR Search and Rescue
TSO Technical Standard Order – A TSO is a minimum performance stan-
dard issued by the FAA for specified materials, parts, processes, and
appliances used on civil aircraft.
UTC Coordinated Universal Time – A time standard based on International
Atomic Time. UTC is the time system used in aviation and is often
associated with Greenwich Mean Time (GMT) and/or “Zulu” time.
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COBHAM ELT/NAV INTERFACE Abbreviated Component Maintenance Manual

Type
Abbreviated Component Maintenance Manual

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