- Difficulty date
- August 11, 2019
- Submitted
- August 14, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35091
- Aircraft time
- 49,250 hours, 14,661 cycles
- Part
- Sensor
- Part number
- MS280341
- Condition
- Failed
- Location
- Apu Oil Temp
- 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 LIGHT DURING APU START-UP. GROUNDED - YES. RMVD & RPLCD INLET TEMP SENSOR REF AMM 49-61-31, APU BITE TEST NORMAL AND APU STARTS & OPERATES NORMAL REF AMM 49-11-00. 2EA C/B'S WERE PULLED & TAGGED, THEN TAGS RMVD & C/B'S RESET TO ACCOMP ABOVE TASKS. GND VERIFICATION SUCCESSFUL.