Service difficulty report · Modulating Valve · Boeing 7379

Difficulty date
October 24, 2023
Submitted
October 30, 2023
Operation
Air carrier
Aircraft
N956AK
Make and model
Boeing 7379
Aircraft serial
43360
Aircraft time
3,050 hours, 865 cycles
Part
Modulating Valve
Part number
632920704
Part serial
1195
Condition
Faulty
Location
#1 Engine
Part time
4,604 hours, 1,315 cycles
Stage of operation
IN
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

WHILE T/S #1 ENG IGNITION FOUND ACTIVE/LATCHED FAULT ON ENG.#1 FAMV RVDT SIGNAL IS OUT OF RANGE MSG # 36-12030 CORRELATED TO FDE BLEED FAMV L SMT FAULT CODE 36145241. GROUNDED - YES. (RESOLVED ON W/O: 1974849 TASKCARD: N/R-00001 ) REMOVED AND REPLACED FAN AIR MODULATING VALVE REF, AMM 36-12-03,OPS TEST GOOD THIS CLEARS PLT, SEAMC NOTIFIED.,GROUND VERIFICATION C/W.

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