Service difficulty report · Modulating Valve · Boeing 7379

Difficulty date
July 27, 2023
Submitted
July 28, 2023
Operation
Air carrier
Aircraft
N920AK
Make and model
Boeing 7379
Aircraft serial
44086
Aircraft time
6,911 hours, 2,051 cycles
Part
Modulating Valve
Part number
632920703
Part serial
2226
Condition
Faulty
Location
#2 Engine
Part time
6,161 hours, 1,814 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

ON PDC FOUND MAINT. LIGHT ILLUMINATED AND BLEED FAMV R FAULT MSG ON STATUS PAGE. GROUNDED - YES. REMOVED AND REPLACED FAN AIR MODULATION VALVE REF AMM 36-12-03/401. ELECTRICAL LRU - REPLACEMENT TEST PASS, PNEUMATIC ENGINE ON -SYSTEM TEST PASS. CLEARED MAIN LIGHT AND LATCHED MESSAGE. OPS CK GOOD. SEAMC PETER NOTIFIED. (REF TSR714700)

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