# SDR SWAA2025120140670

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2025
- Submitted: December 1, 2025
- Operation: Air carrier
- Aircraft: [N295WN](https://openairdocs.org/aircraft/N295WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32541
- Aircraft time: 58,936 hours, 35,557 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Pressure Switch
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025120140670

## Discrepancy

APU LOW OIL PRESSURE LIGHT ILLUMINATED IN CRUISE, RESULTING IN SINGLE ELECTRICAL SOURCE. OVERWEIGHT LANDING PERFORMED IAW AOM 12-1-7. SMLDW EXCEEDED BY 10.3.  SERVICED APU OIL & REPLACED LOW OIL PRESSURE SWITCH. CHKD GOOD IAW AMM 49-94-22

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