Service difficulty report · Wire Harness · Boeing 7379

Difficulty date
January 26, 2025
Submitted
January 27, 2025
Operation
Air carrier
Aircraft
N37551
Make and model
Boeing 7379
Aircraft serial
67181
Aircraft time
6,921 hours, 2,329 cycles
Part
Wire Harness
Part number
W3144
Condition
Burned
Location
Zone 900
Stage of operation
IN
How discovered
O
Nature of condition
B
Precautionary procedure
K

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

What was found

WHILE T/S LAV RT LIGHT PROBLEN FOUND BUNDLE W3144 NEAR CONNECTOR D15864 BURNED. SEVERAL WIRES BROKE. TOTAL 11 WIRES DAMAGED ON CONNECTOR D15864. 3 BROKEN, 8 CHARRED AND CHAFFED DAMAGED WIRES CIRCUIT BREAKERS PULLED TO DEACTIVATE ALL LAVS REF AMM 25-40-00-040-802. REF SWPM 20-30-13, REPAIRED DAMAGED WIRES W3144-0730-18, W3144-0850-20, W3144-0851-20, W3144-0856-22, W3144-0857, W3144-0867-20, W3144-0868-20, AND W3144-2703R&B-22 BY SEALED SPLICE IAW SWPM 20-30-12. WIRE W3144-0874-18 FOUND MINOR DAMAGE TO INSULATION REPAIRED WITH TAPE&TIES, REMAINING WIRES IN BUNDLE CLEANED REF SWPM 20-10-04 AND INSPECTED WITH NO DAMAGE NOTED. RESECURED BUNDLE AND APPLIED CHAFF PROTECTION REF SWPM 20-10-26.

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