- Difficulty date
- January 26, 2022
- Submitted
- February 1, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41733
- Aircraft time
- 32,642 hours, 10,481 cycles
- Part
- Exciter
- Part number
- 38880585
- Part serial
- J20070041
- Condition
- Failed
- Location
- Apu
- Part time
- 1,572 hours, 2,579 cycles
- Stage of operation
- LD
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING "APU FAULT LIGHT" ILLUMINATED DURING START ATTEMPT. GROUNDED - YES. T/S CODE 49-41011, REPLACED EXCITER, IGNITION UNIT IN REF TO B737-900 AMM 49-41-31. PERFORMED 2 SUCCESSFUL STARTS OPS CHECKED GOOD. GROUND VERIFICATION GOOD.