What was found
APU HAS MILD SURGING DURING NORMAL OPERATION. GROUNDED - YES. R+R DELTA PRESSURE SENSOR REF AMM 49-52-33-000-801/400-801 AND TOTAL PRESSURE SENSOR REF AMM 49-52-32-000-801/400-801. APU FUNCTIONS NORMALLY. NDN.
- Difficulty date
- October 13, 2023
- Submitted
- October 16, 2023
- Operation
- Air carrier
- Aircraft
- N931AK
- Make and model
- Boeing 7379
- Aircraft serial
- 43353
- Aircraft time
- 6,676 hours, 1,936 cycles
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Sensor
- Part number
- 38762272
- Condition
- Faulty
- Location
- Apu
- 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.