Service difficulty report · Wire · Boeing 757224

Difficulty date
July 14, 2024
Submitted
July 16, 2024
Operation
Air carrier
Aircraft
N33103
Make and model
Boeing 757224
Aircraft serial
27293
Aircraft time
113,778 hours, 24,473 cycles
Part
Wire
Part number
L9043A18
Condition
Unsecure
Location
Emergency Lights
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

COACH CABIN, ALL FLOOR EMERGENCY PATH LIGHTS INOP. FOUND POWER SUPPLY M10919 SUPPLYING POWER TO ALL ROWS. FOUND WIRE L9043A18 FROM BATTERY M10699 STOWED BEHIND 12 ABC DADO PANEL. RE ROUTED TO 32ABC TO CONFORM TO DRAWING BR2013-P-7572C0-5 AND DRAWING BR2013-P-7572C0-5 WDM. NEEDS TO BE SECURED AND TERMINATED AT SEAT 32. REMOVED INCORRECTLY INSTALLED SPLICED IN WIRING BETWEEN ROWS 32-31 AND ROWS 22-21. VERIFIED SECTION 7-12 & 20-21 EPL LIGHT OPERATES FROM M10919. VERIFIED SECTION 32, 34-41 EPL LIGHT OPERATES FROM BATTERY M736. TERMINATED AND SECURED WIRES L9043A18 AND L9043B18N TO L9043 AISLE IND MODULE FOR SEAT ROWS 22-31. TERMINATION OF WIRES WERE DONE IAW SWPM 20-90-14. EMERGENCY PATH LIGHTING OPS CHECKS NML PER AMM 35-51-11. VERIFIED POWER PACKS OPERATE NORMAL PER AMM 33-51-07 33-51-07. ALL WIRING NOW MATCHES DWG BR2013-P-7572CO-5 REV F PER EA 4420-02847.