Service difficulty report · Valve · Boeing 7379

Difficulty date
January 10, 2022
Submitted
January 12, 2022
Operation
Air carrier
Aircraft
N913AK
Make and model
Boeing 7379
Aircraft serial
44079
Aircraft time
2,527 hours, 921 cycles
Part
Valve
Part number
632920682
Part serial
1450
Condition
None
Location
#2 Engine
Part time
2,521 hours, 919 cycles
Stage of operation
IN
How discovered
O
Nature of condition
O
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 HPSOV INOPERATIVE LOCK OUT PROCEDURE, HPSOV LOCK OUT BOLT HELICOIL CAME OUT WHEN THE LOCKOUT BOLT WAS LOOSENED. GROUNDED - YES. REOVED AND REPLACED #1 ENG HPSOV REF B737-9 AMM 36-11-07. LEAK AND OPS CHECK GOOD.

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