SDR UALA2009122804034

Service difficulty report · Cable · Boeing 747422

Difficulty date: December 27, 2009
Submitted: December 28, 2009
Operation: Air carrier
Aircraft: N199UA
Make and model: Boeing 747422
Aircraft serial: 28717
Aircraft time: 50,121 hours, 5,965 cycles
Engine: Pwa PW4056
System (JASC): 2397 · Communications System Wiring
Part: Cable
Condition: Burned
Location: Pa System
Stage of operation: TX
How discovered: O
Nature of condition: B
Precautionary procedure: D

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

What was found

CABIN P-A SYSTEM UNUSABLE. LAC2 REPLACED, T-S FOUND SEAT 19DEF IOEU J1 CONNECTOR BURNED, OEU REPLACED. AND OEU CABLE J 1 PLUG PIN 6,7,15 BURNED. PLUG SWAPPED WITH SEAT 20DEF OEU CABLE AND CHK NORMAL. OEU J2 CABLE REPLACED. PA DEFECT T-S FOUND IOEU AT SEAT 19DEF J1 PLUG PIN 6,7,15 BURNED, IOEU J1 CABLE BURNED, J2 CABLE ALREADY REPAIRED AND TAPED. NEED J1 CABLE PN 1167820-305, J2 CABLE SLEEVE CUT AND INSPECTED CABLE USEABLE. NO NEED TO REPLACE.