Service difficulty report · Modulating Valve · Boeing 7379

Difficulty date
June 26, 2023
Submitted
June 27, 2023
Operation
Air carrier
Aircraft
N931AK
Make and model
Boeing 7379
Aircraft serial
43353
Aircraft time
5,475 hours, 1,610 cycles
Part
Modulating Valve
Part number
632920703
Part serial
474
Condition
Out Of Position
Location
#1 Engine
Part time
3,316 hours, 957 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. REMOVED AND REPLACED THE #1 L/H FAMV. ALL OPS CHECKS PASSED. REF AMM 36-12-03. THIS CLEARS THE TSR.

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