Service difficulty report · Valve · Boeing 767

Difficulty date
March 31, 2022
Submitted
April 5, 2022
Operation
Air carrier
Aircraft
N399CM
Make and model
Boeing 767
Aircraft serial
25451
Aircraft time
105,872 hours, 17,722 cycles
Part
Valve
Part number
80217012
Part serial
910714
Condition
Failed
Stage of operation
CR
How discovered
V
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

AT FL 340 L ENG HPSOV EICAS MESSAGE ILLUMINATED. RAN QRH 2.22. REPLACED #1 ENG HPSOV PER AMM 36-11-07, BOTH OPS AND LEAK CHECKS OK. AC REMAINS ETOPS 180, ETOPS GROUND VERIFICATION COMPLETED. NO TIME INFO IN TRAX FOR UNIT.

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