Service difficulty report · Check Valve · Boeing 7377H4

Difficulty date
February 19, 2026
Submitted
February 23, 2026
Operation
Air carrier
Aircraft
N445WN
Make and model
Boeing 7377H4
Aircraft serial
29841
Aircraft time
71,116 hours, 42,770 cycles
Part
Check Valve
Condition
Faulted
Location
Rt Engine
Stage of operation
CR
How discovered
O
Nature of condition
R, J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RIGHT ENGINE COMPRESSOR STALLED AT FL 290. ACCOMPLISHED BORESCOPE INSPECTIONS IAW AMM 71-00-00-210-801-F00, NO FINDINGS TIME LIMITING OR BEYOND AMM LIMITS. REMOVED AND REPLACED 5TH STAGE BLEED AIR CHECKED VALVE IAW AMM 36-11-02-401. POWER ASSURANCE CHECKED GOOD IAW 71-00-00-700-813-F00.

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