Service difficulty report · Fire Loop · Boeing 747422

Difficulty date
April 8, 2010
Submitted
April 12, 2010
Operation
Air carrier
Aircraft
N171UA
Make and model
Boeing 747422
Aircraft serial
24322
Aircraft time
77,287 hours, 9,236 cycles
Engine
Pwa PW4056
Part
Fire Loop
Condition
Faulty
Location
Cargo Bay
Stage of operation
IN
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

FWD CARGO LOOP 1 EICAS MESSAGE. LAST MINUTE CALL IN, NO TIME TO T/S. ORDERED PART PCN 585-4855. OSTF:S1481. FOUND PRESENT LEG FAULT MSG 26160 NOT ACTIVE, NO EXISTING FAULTS, FIRE SYS TEST OK, NO FURTHER ACTION IS REQUIRED.