SDR CALA2013090991138

Service difficulty report · Wire · Boeing 747422

Difficulty date: September 8, 2013
Submitted: September 10, 2013
Operation: Air carrier
Aircraft: N117UA
Make and model: Boeing 747422
Aircraft serial: 28810
Aircraft time: 59,339 hours, 7,062 cycles
Engine: Pwa PW4056
System (JASC): 2697 · Fire Protection System Wiring
Part: Wire
Condition: Broken
Location: Fire Loop
Stage of operation: NR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

'ENGINE 3 FIRE LOOP A' EICAS STATUS MESSAGE DISPLAYED. ENGINE 3 FIRE LOOP A FIRE OR FAULT OUTPUT. CHRONIC INT MESSAGE AT EN CRUISE 26024, ENGINE 3 'B' LOOP OPN NORMAL. REPAIRED BROKEN WIRE FWD LOWER LOOP A. FIRE TESTED NORMAL, CHECKED OK.