What was found
APU DOOR STUCK OPEN DUE TO FAULTY INLET DOOR SWITCH. SWITCH WAS REPLACED, SYSTEM CONFIRMED OPERATIONAL.
- Difficulty date
- July 23, 2021
- Submitted
- July 27, 2021
- Operation
- Air carrier
- Aircraft
- N757QM
- Make and model
- Boeing 75729J
- Aircraft serial
- 27203
- Aircraft time
- 62,514 hours, 33,264 cycles
- System (JASC)
- 5270 · Door Warning System
- Part
- Switch
- Part number
- 81020401
- Part serial
- 97159
- Condition
- Faulted
- Location
- Apu Door
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- S
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.