Service difficulty report · Bleed Valve · Boeing 737990ER
FAA SDR system
- Difficulty date
- November 25, 2020
- Submitted
- December 1, 2020
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41733
- Aircraft time
- 28,760 hours, 9,293 cycles
- Engine
- Cfmint CFM567B27E
- Part
- Bleed Valve
- Part number
- 32022221
- Part serial
- 15131
- Condition
- Stuck
- Location
- Nr 1 Engine
- Part time
- 28,760 hours, 9,293 cycles
- Stage of operation
- IN
- 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
REF T/C AD20201651-NG-36-1 NR 1 ENGINE 5TH STAGE VALVE FAILED INSPECTION, FLAPPER STUCK CLOSED DUE TO CORROSION. GROUNDED-YES. REPLACED NR 1 ENGINE 5TH STAGE VALVE, AS REQUIRED PER T/C AD20201651-NG-36-1 REF B737-900 AMM 36-11-02. OPERATIONS AND LEAK CHECKS GOOD.