What was found
WHILE PERFORMING ENGINE WASH ON #1 ENG HIGH STAGE VALVE LOCKOUT MECHANISM SEIZED IN THE LOCKED POSITION. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HIGH STAGE VALVE REF B737-800 AMM 36-11-06. OPS/LEAKS CHECK GOOD.
- Difficulty date
- May 6, 2022
- Submitted
- May 9, 2022
- Operation
- Air carrier
- Aircraft
- N506AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35690
- Aircraft time
- 50,242 hours, 15,159 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Valve
- Part number
- 32144464
- Part serial
- 11370
- Condition
- Seized
- Location
- #1 Engine
- Part time
- 40,717 hours, 13,924 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.