What was found
APU FAILS TO START, NO FLAME MAINTENANCE MESSAGE 49-41011. ACFT GROUNDED. REPLACED EXCITER, IGNITER PLUG LEAD AND IGNITION PLUG IAW AMM 49-41-31, AMM 49-41-52 AND AMM 49-41-51. OPS CHECK APU, NORMAL. CURRENT STATUS SHOW NO FAULT.
- Difficulty date
- January 6, 2014
- Submitted
- January 10, 2014
- Operation
- Air carrier
- Aircraft
- N596AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35688
- Aircraft time
- 21,704 hours, 6,766 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 38880587
- Part serial
- 086971102661
- Condition
- Failed
- Location
- Apu
- Part time
- 7,984 hours, 8,273 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.