- Difficulty date
- March 10, 2023
- Submitted
- March 13, 2023
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41733
- Aircraft time
- 36,389 hours, 11,608 cycles
- Part
- Solenoid
- Part number
- 3205482
- Part serial
- 23937
- Condition
- Faulty
- Location
- #2 Engine
- Part time
- 21,625 hours, 7,008 cycles
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GWTAI VALVE SOLENOID TEST FAILED DURING MW0311 HARNESS INSTALLATION TEST FOR #2 ENGINE. REF. AMM 30-11-12-710-801 AND TSR713934. GROUNDED - YES. REPLACED THE GWTAI SOLENOID REF B737-900 AMM 30-11-12. NO HELP. REPLACED THE PRECOOLER VALVE PER AMM 36-12-02. OPS CK GOOD. ETOPS GROUND VERIFICATION SUCCESSFUL. GWTAI SOLENOID VALVE PASSED REF AMM 30-11-12.