What was found
APU FAULT LIGHT CAME ON AT ATTEMPTED START. ACFT GROUNDED. REPLACED IGNITER PLUG AND APU IGNITION UNIT IAW AMM 49-41-51 AND 49-41-31. OPS TEST GOOD, BITE CHECKED GOOD.
- Difficulty date
- May 15, 2016
- Submitted
- May 18, 2016
- Operation
- Air carrier
- Aircraft
- N423AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 35206
- Aircraft time
- 12,274 hours, 3,967 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Igniter
- Part number
- 38880587
- Part serial
- 130075
- Condition
- Failed
- Location
- Apu
- Part time
- 2,955 hours, 6,063 cycles
- Stage of operation
- NR
- 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.