# SDR AALA202510026568

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2025
- Submitted: October 2, 2025
- Operation: Air carrier
- Aircraft: [N963NN](https://openairdocs.org/aircraft/N963NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31208
- Aircraft time: 32,126 hours, 13,420 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Pressure Switch
- Part number: 38007021
- Condition: Failed
- Location: Apu
- Stage of operation: CR
- How discovered: O
- Nature of condition: G, H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202510026568

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: APU FAILED IN FLIGHT, CAUSED A SINGLE SOURCE OF ELECTRICAL SOURCE. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT MEM.  REMOVED AND REPLACED LOW OIL PRESSURE SWITCH, PER AMM 49-94-22. REMOVED AND REPLACED NUMBER 2 ENGINE (IDG)-INTEGRATED DRIVE GENERATOR (AALA202510026944), PER AMM 24-11-11. OPERATIONAL CHECK GOOD.

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