Service difficulty report · Modulating Valve · Boeing 7379

Difficulty date
July 20, 2023
Submitted
July 24, 2023
Operation
Air carrier
Aircraft
N952AK
Make and model
Boeing 7379
Aircraft serial
60390
Aircraft time
3,073 hours, 910 cycles
Part
Modulating Valve
Part number
632920703
Part serial
2263
Condition
Faulty
Location
Engine #1
Part time
3,114 hours, 922 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

REF T/C 31-005-00SMT "BLEED FAMV RVDT L" MESSAGE SHOWS WITH CORROLATED MAINTENANCE MESSAGE 36-12030 "ENG 1 FAMV RVDT SIGNAL IS OUT OF RANGE". GROUNDED - YES. (RESOLVED ON W/O: 1961274 TASKCARD: N/R-00001 ) REMOVED AND REPLACED FAMV ON #1 ENG. PERFORMED ELECTRICAL LRU REPLACEMENT TEST AND PNEUMATIC ENGINE ON-SYSTEM TEST. BOTH TESTS PASSED. OPS CHECK GOOD. REF AMM 36-12-03. SEAMC ANDY NOTIFIED.

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