# SDR O9IA20260730167

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2026
- Submitted: July 30, 2026
- Operation: Air carrier
- Aircraft: [N171AA](https://openairdocs.org/aircraft/N171AA), registered now
- Make and model: Cessna 510
- Registry model: [Cessna 510](https://openairdocs.org/model/cessna-510) (OpenAirDocs)
- Aircraft serial: 5100412
- Aircraft time: 5,413 hours, 5,414 cycles
- Engine: Pwc PW615FA
- Engine time: 3,427 hours, 3,314 cycles
- System (JASC): [7930 · Engine Oil Indicating System](https://openairdocs.org/jasc/7930)
- Part: Oil System
- Condition: Malfunctioned
- Location: Engine
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O9IA20260730167

## Discrepancy

RT ENG OIL PRESSURE DROPPED TO 0 ON APPROACH INTO HIO FROM PAE.  PRESSURE JUMPED UP INTO GREEN & SPIKED INTO RED & STAYED THERE.  ENG THEN SHUTDOWN INFLT ON APPROACH. PILOT DECLARED AN EMERGENCY & LANDED WITHOUT INCIDENT.  MAINT CHKD OIL LEVEL ON ENGS & BOTH WERE IN THE MIDDLE OF MIN/MAX BAR.  IDLE RUN & POWER RUNS FOR 10 MINS CONDUCTED WITH NO ABNORMAL READINGS.  AT THIS TIME ALL MAINT CHKS GOOD. MAINT INSPECTED INDICATION SYS WITH NO ISSUES NOTED.  LAST MONTH THE RT ENG HAD OIL PRESSURE FLUCTUATIONS & REPLACED CONNECTOR TO OIL PRESSURE SENSOR AFTER WE FOUND THE RESISTANCE GOING TO OPEN. CONNECTOR CHECKED & NO ISSUES NOTED. IN 2024 THIS ENG HAD A LOW OIL PRESSURE ISSUE & NR 4 BEARING CARBON SEAL REPLACED. THERE HAVE BEEN NO ISSUES WITH OIL PRESSURE ON ENG BETWEEN THE 2024 WORK & REPLACEMENT OF CONNECTOR IN JUNE OF 2024.  NO ISSUES WITH OIL PRESSURE SINCE THE JUNE 2024 CONNECTOR REPLACEMENT EITHER.

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