What was found
APU FAULT LIGHT ILLUMINATED DURING START. GROUNDED - YES. PERFORMED APU BITE ON CDU, FOUND FAULT 49-41011 "NO FLAME SHUTDOWN". STARTED & OPERATED APU TWICE REF B737-900 AMM 49-11-00/201 WITH NO DEFECTS NOTED. APU OPERATES NORMALLY.
- Difficulty date
- February 4, 2020
- Submitted
- February 6, 2020
- Operation
- Air carrier
- Aircraft
- N462AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36362
- Aircraft time
- 22,703 hours, 7,382 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Fault Light
- Condition
- False Activation
- Location
- Apu
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.