Service difficulty report · Wire · Boeing 7379

Difficulty date
October 13, 2022
Submitted
October 17, 2022
Operation
Air carrier
Aircraft
N977AK
Make and model
Boeing 7379
Aircraft serial
43391
Aircraft time
981 hours, 309 cycles
Part
Wire
Part number
UNKNOWN
Condition
Misinstalled
Location
Unknown
Stage of operation
NR
How discovered
V
Nature of condition
J
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY EXIT LIGHTS "NOT ARMED" INDICATOR INOP. GROUNDED - YES. RELAMPED NO HELP. REPLACED L-1 "NOT ARMED" LIGHT ASSEMBLY AND SOCKET, NO HELP. PULLING C/B 96-3 D11 MASTER DIM/TEST CONT. WILL TURN ON LIGHT. REPLACED DIODE M208 REF B737-9 WDM 33-18-11 SH2. NO HELP. REPLACED "NOT ARMED" LIGHT ASSY PN : 318-630-1002-010 IAW WDM 33-51-11. NO HELP. WITH LI SOCKET REMOVED, TERMINAL#2 GROUND READS 1.6M TO TB505. REF. WDM 33-18-37 PG. 4.1 SHT 1, VERIFIED L1 "NOT ARMED" ANN. ASSY CORRECTLY WIRED. DID FIND AT TB505, WIRES 5578-20 &5579-20 SWAPPED AT TERMINAL BLOCK YB9 AND YA9. SWAPPED WIRES TO CORRECT TERMINAL BLK POSITIONS, EMERGENCY EXIT LIGHT "NOT ARMED" ANN. OPS CHK GOOD REF. B737-9 AMM 33-51-00.

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