What was found
APU EGT GUAGE READS 0 UPON START AND WHILE RUNNING, EVENTUALLY STARTED WORKING AFTER 5 MIN RUNTIME. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- September 1, 2023
- Submitted
- September 5, 2023
- Operation
- Air carrier
- Aircraft
- N587AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35684
- Aircraft time
- 56,121 hours, 16,426 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.