What was found
AT GATE, APU FAILED TO START. APU FAULT LIGHT ILLUMINATED, REMAINED ON. ACFT GROUNDED. R & R APU EXCITER UNIT IAW AMM 49-41-31. APU OPS CHECKED NORMAL.
- Difficulty date
- August 2, 2012
- Submitted
- August 25, 2012
- Operation
- Air carrier
- Aircraft
- N594AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35191
- Aircraft time
- 16,982 hours, 5,298 cycles
- Engine
- Cfmint CFM567B273
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 38880587
- Part serial
- 076971103116
- Condition
- Inoperative
- Location
- Apu
- Part time
- 646 hours, 1,642 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.