THIS SERV ICE BUL LE TIN IS FAA AP PROVED FOR EN GI NEER ING DE SIGN
SERV ICE BUL LE TIN M20 -263
IS SUE DATE: 15 August, 1997
SUB JECT:Seat Belt re tainer bush ings ny lon grom met fail ure.
MODEL/S/N
AF FECTED: M20 Se ries - ALL S/N’s with Non- Inertial Reel Shoul der Re straints in stalled
* M20J - 24- 0001 thru 24- 1685 - With Non- Inertial Reel Shoul der Re straint As sem blies
24- 1686 thru 24- TBA - With Rear Seat Shoul der Re straint As sem blies
* M20K - 25- 0001 thru 25- 1224 - With Non- Inertial Reel Shoul der Re straint As sem blies
25- 1225 thru 25- TBA - With Rear Seat Shoul der Re straint As sem blies
M20L - 26- 0001 thru 26- 0041 - With Rear Seat Shoul der Re straint As sem blies
M20M - 27- 0001 thru 27- TBA - With Rear Seat Shoul der Re straint As sem blies
M20R - 29- 0001 thru 29- TBA - With Rear Seat Shoul der Re straint As sem blies
* M20J S/N’s 24- 1150 thru 24- 1417 & M20K S/N’s 25- 0560 thru 25- 0780 had In di ana Mills
Seat Belt and/or Shoul der Re straint As sem blies in stalled dur ing pro duc tion, how ever,
if any re place ment has been ac com plished, the re place ment Seat Belt/Re straint As sem -
bly may have the re tainer bush ing, ny lon grom met con figu ra tion.
NOTE
AM- Safe Brand shoul der re straint’s in cor po rate a re tainer bush ing used for the cargo re str aint
tie down sys tem for the rear seats. These re tainer bush ing’s should also be in spected for
miss ing or de fec tive ny lon grom mets used in the origi nal con figu ra tion.
TIME OF
COM PLI ANCE:Within the next 25 op era tional hours or at next main te nance ac tion.
IN TRO DUC TION: Ramp in spec tions at some air ports have found the ny lon grom mets miss ing or bro -
ken from shoul der har ness re tainer bush ings on sev eral model air craft. Un au thor ized re pairs us ing ty-
raps have been found. The Ty- rap’s lock ing tab may pre vent the re straint buckle from prop erly snap ping
into po si tion or may cre ate dif fi cul ties in re leas ing the re straint buckle in an emer gency. The in tent of this
SB is to pro vide in for ma tion for in spec tion and cor rectly re pair ing any de fec tive re tainer bush ing grom -
met that may have failed.
IN STRUC TIONS:Fig ure SB M20- 263-1 de picts the con di tions that may be found on any seat belt/re -
straint as sem bly. Re fer to the il lus tra tion and fol low the pro ce dures shown on the fig ure.
WAR RANTY:Moo ney Air craft Cor po ra tion will al low 0.5 hours la bor to in spect and re pair the seat
belt/
har ness re straints on air craft still WITHIN WAR RANTY . The parts will be avail able through your Moo -
ney Serv ice Cen ter. Your ac count will be cred ited in the nor mal man ner when prop erly com ple ted war -
ranty claims are re turned to Serv ice Parts De part ment, Kerr ville, TX.
REF ER ENCEFAA Gen eral Avia tion Air wor thi ness Alerts, AC No. 43- 16, No. 210, Janu ary, 1996
DATA:
PARTS LIST: Kit Part number SB M20-263-1
ITEM.P/N.....DE SCRIP TIONQTY
1..HRSR-1/2....GROM MET.........4
Ven dor for Grom met:XL Tech nolo gies
1315 So. Park Dr.
Kerns ville, NC 27284
Tele phone:(910) 996- 6777
Fax:(910) 996- 2887
FIG URES/
TA BLES:See Fig ure SB M20- 263 -1 on next page.
SERV ICE BUL LE TIN M20- 263
IS SUE DATE: 15 August, 1997
FIG URES/
TA BLES:SB M20- 263-1
Figure SB M20-263-1
/