What was found
APU FAULT AFTER LANDING APU WOULD NOT START. APU CONTROLLER BITE SHOWS START CKT FAULTY. R&R APU STARTER PER AMM 49-41-01 BUT SAME COND AND FOUND APU START T/R UNIT N, E, AND APU BATT START NORMAL.
- Difficulty date
- September 20, 2018
- Submitted
- September 24, 2018
- Operation
- Air carrier
- Aircraft
- N644GT
- Make and model
- Boeing 7673JHF
- Aircraft serial
- 37810
- Aircraft time
- 13,949 hours, 3,310 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Starter
- Part number
- 5198588
- Part serial
- 474467
- Condition
- Faulty
- Location
- Apu
- Stage of operation
- LD
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.