What was found
FAULT LIGHT ILLUMINATED WHEN STARTING APU. TROUBLESHOT REF FIM 49 40 00 810 802 NO IGNITION. REMOVED AND REPLACED EXCITER IGNITION UNIT REF M/M 49 41 31. OPS CHECK OK NORMAL START NOTED.
- Difficulty date
- October 28, 2008
- Submitted
- October 31, 2008
- Operation
- Air carrier
- Aircraft
- N579AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35187
- Aircraft time
- 6,554 hours, 1,973 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 38880587
- Part serial
- 016971100057
- Condition
- Defective
- Location
- Apu
- Part time
- 1,390 hours, 420 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.