What was found
APU WAS STARTING AND PUT ON BUS TAXIING IN THEN AUTO SHUTDOWN. GROUNDED - YES. REMOVED AND REPLACED APU LOW OIL PRESSURE SWITCH IAW B737-9 AMM 49-94-22.
- Difficulty date
- October 30, 2022
- Submitted
- November 2, 2022
- Operation
- Air carrier
- Aircraft
- N924AK
- Make and model
- Boeing 7379
- Aircraft serial
- 43333
- Aircraft time
- 3,689 hours, 1,034 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Pressure Switch
- Part number
- 38762552
- Condition
- Faulty
- Location
- Apu Oil Sys
- Stage of operation
- TX
- 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.