What was found
APU FAULT ON START, DID NOT START. GROUNDED - YES. REMOVED AND REPLACED START CONVERTER UNIT REF B737-900 AMM 49-41-61.
- Difficulty date
- August 10, 2022
- Submitted
- August 12, 2022
- Operation
- Air carrier
- Aircraft
- N440AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41705
- Aircraft time
- 33,039 hours, 10,461 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Converter
- Part number
- 1152426245
- Part serial
- 110C1009
- Condition
- Inoperative
- Location
- Apu Compartment
- Part time
- 63,244 hours, 31,295 cycles
- Stage of operation
- NR
- 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.