Service difficulty report · Wire Harness · Boeing 737924ER

Difficulty date
December 28, 2025
Submitted
December 30, 2025
Operation
Air carrier
Aircraft
N39475
Make and model
Boeing 737924ER
Aircraft serial
37100
Aircraft time
38,842 hours, 14,111 cycles
Part
Wire Harness
Part number
BR9672A60
Condition
Damaged
Location
Zone 200
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

EMERGENCY LIGHT HARNESS AT BS 875 NOT IN PROPERLY CONFIGURATION IAW DWG 40N01810, AND HAS DAMAGE IN SEVERAL AREAS. SUPPORT TASK NSA EMX N/R 00077. REMOVED INCORRECT WIRING FROM EEPL BR9672-A-60 AND REPLACED WITH WIRING HARNESS SECTIONS P/N BR9635-60-24 AND BR9635-90-24 IAW AIPC 25-27-31 & SWPM 20-90-14. HARNESS NOW MEETS CONFIGURATION REQUIREMENTS OF DWG 40N01810, SHEET 2, REV ORIGINAL. ALL DAMAGE WAS REMOVED WITH REPLACEMENT OF THE HARNESS SECTIONS. PERFORMED EMERGENCY LIGHTS OPS CHK IAW AMM 33-51-00-720-801. ALL FUNCTIONS GOOD.