Service difficulty report · Shutoff Valve · Boeing 7379

Difficulty date
January 1, 2025
Submitted
January 3, 2025
Operation
Air carrier
Aircraft
N77582
Make and model
Boeing 7379
Aircraft serial
43521
Aircraft time
820 hours, 296 cycles
Part
Shutoff Valve
Part number
632160643
Part serial
4106
Condition
Faulty
Location
Nr 1 Engine
Part time
810 hours, 291 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT ENG ANTI-ICE LIGHT ILLUMINATED INFLIGHT PASSING 10000 REM AINED ON. NNC RAN FLLX FOUND 4 CIRCUIT BREAKERS OPEN. 1)ENGINE 1 STBY ALTN PWR CHAN A. 2)ENG 1 IGN L AND ALTN PWR CHAN A. 3)BLEED AIR VALVES CB. ALL PICTURES ATTACHED. PERFORMED EEC BITE TEST FOR ENGINE ONE AND TEST PASSED. RESET ALL CIRCUIT BREAKERS PERFORMED ENGINE RUN. NUMBER ONE ENGINE, ANTI ICE DISAGREE LIGHT ILLUMINATED, AND CIRCUIT BREAKERS FOR IGNITION POPPED AGAIN (IGN L AND ALTN PWR CHAN A). REPLACED PRSOV PER AMM TASK 36-11-04. ACP FIM TASK 361-104-41 R&R IASC REF AMM 21-61-22 OP CHECKS GOOD.

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