Service difficulty report · Modulating Valve · Boeing 7379

Difficulty date
September 1, 2023
Submitted
September 5, 2023
Operation
Air carrier
Aircraft
N931AK
Make and model
Boeing 7379
Aircraft serial
43353
Aircraft time
6,308 hours, 1,837 cycles
Part
Modulating Valve
Part number
632920704
Part serial
2682
Condition
Faulty
Location
#1 Engine
Part time
4,252 hours, 1,263 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

WHILE ACCOMPLISHING T/C 31-005-00. FOUND SMT FAULT "BLEED FAMV RVDT L" ON ENG 1. GROUNDED - YES. REMOVED & REPLACED FAN AIR MODULATING VALVE REF AMM 36-12-03-000-801 & 36-12-03-400-801. OPS CHECK GOOD. SEAMC SCOTT NOTIFIED THIS CLEARS PLT DEFERRAL.

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