What was found
APU FAULT LIGHT REMAINS ON AFTER APU START. SWITCH IN OFF. ACFT GROUNDED. R & R APU IGNITION UNIT REF AMM 49-41-31. OPS CHECKS GOOD.
- Difficulty date
- November 18, 2015
- Submitted
- November 23, 2015
- Operation
- Air carrier
- Aircraft
- N563AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35180
- Aircraft time
- 34,771 hours, 10,551 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Ignition Unit
- Part number
- 38880587
- Part serial
- 120733
- Condition
- Failed
- Location
- Apu
- Part time
- 2,802 hours, 5,619 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.