What was found
APU FAULT LIGHT ILLUMINATED, FAILED TO START. ACFT GROUNDED. REMOVED AND REPLACED APU IGNITION EXCITER IAW AMM 49-41-31. OPS CHECKED GOOD.
- Difficulty date
- July 16, 2016
- Submitted
- July 18, 2016
- Operation
- Air carrier
- Aircraft
- N423AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35206
- Aircraft time
- 13,015 hours, 4,216 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Exciter
- Part number
- 38880587
- Part serial
- 096971100262
- Condition
- Failed
- Location
- Apu
- Part time
- 178 hours, 398 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.