# SDR QREA202607070001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2026
- Submitted: July 7, 2026
- Operation: Air carrier
- Aircraft: [N971TB](https://openairdocs.org/aircraft/N971TB), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0353
- Aircraft time: 5,500 hours, 4,697 cycles
- Engine: Wilint FJ443A
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Pressure Switch
- Part number: 99121784
- Part serial: 5413
- Condition: Stuck
- Location: Zone 400
- Part time: 5,500 hours, 4,697 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QREA202607070001

## Discrepancy

RIGHT ENGINE OIL PRESSURE LOW WARNING-  OIL PRESSURE SWITCH STUCK IN THE OIL PRESSURE ZERO POSITION

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