Service difficulty report · Modulating Valve · Boeing 7379

Difficulty date
September 3, 2023
Submitted
September 7, 2023
Operation
Air carrier
Aircraft
N941AK
Make and model
Boeing 7379
Aircraft serial
44101
Aircraft time
4,205 hours, 1,211 cycles
Part
Modulating Valve
Part number
632920703
Part serial
3021
Condition
Faulty
Location
#1 Engine
Part time
4,236 hours, 1,223 cycles
Stage of operation
IN
How discovered
V
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

TECH SERVICES REQUEST FOR FOLLOW-UP TO MTX LIGHT & FAULT (#1 LEFT FAMV FAULT 36-12020 #1(LH) FAMV IS NOT IN COMMANDED POSITION)----(#PRI1)----ETOPS SIGNIFICANT SYSTEM----. GROUNDED - YES. (RESOLVED ON W/O: 1967601 TASKCARD: N/R-00001 ) REPLACED #1 FAMV REF AMM 36-12-03, LRU REPLACEMENT TEST AND PNEUMATIC TEST PASSED, NO FAULTS. SEAMC ASHROV NOTIFIED. THIS CLEARS TSR. OPENED AND CLOSED COWLS AND T/R'S REF AMM 71-11-04 AND 78-31-00.

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