- Difficulty date
- November 4, 2017
- Submitted
- November 8, 2017
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41730
- Aircraft time
- 20,073 hours, 6,593 cycles
- Part
- Exciter
- Part number
- 38880587
- Part serial
- 100172
- Condition
- Failed
- Location
- Apu
- Part time
- 1,750 hours, 3,512 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.
What was found
APU FAULT ILLUMINATED. ACFT GROUNDED. PERFORMED FIM 49-40, 802. REMOVED AND REPLACED IGNITER PLUG IAW AMM 49-41-51, NO HELP. REMOVED & REPLACED APU IGNITION LEAD, IAW AMM 49-41-52. REMOVED & REPLACED APU IGNITION EXCITER IAW AMM 49-41-31. OPS CHECKED GOOD.