Service difficulty report · Circuit Card · Boeing 747422

Difficulty date
June 11, 2013
Submitted
June 14, 2013
Operation
Air carrier
Aircraft
N117UA
Make and model
Boeing 747422
Aircraft serial
28810
Aircraft time
58,235 hours, 6,948 cycles
Engine
Pwa PW4056
Part
Circuit Card
Condition
Defective
Location
Fire Warning
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

STATUS MSG, ENG 3 FIRE LOOP A MSG 26024. CONFIRMED MEL 2611E. REPLACED ENG 3 FIRE DET LOOP A CARD IAW AMM. PERFORMED OPS TEST OF ENG FIRE AND OVERHEAT DET SYS IAW AMM. TEST PASSED AND NO CORELATED FAULT ON CMC.