# SDR ENHA202608040197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2026
- Submitted: September 5, 2026
- Operation: Air carrier
- Aircraft: [N502GV](https://openairdocs.org/aircraft/N502GV), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B5249
- Aircraft time: 6,287 hours, 10,354 cycles
- Engine: Pwc PT6A140
- Engine time: 15 hours, 33 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: B-Nut
- Part number: 595003415
- Condition: Loose
- Location: Oil/Air Separ
- Part time: 6,287 hours, 10,354 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ENHA202608040197

## Discrepancy

SMOKE IN CABIN. MECHANICS FOUND LOOSE B-NUT AT LINE FROM THE AIR/ OIL SEPERATOR TO WET TORQUE INDICATING VENT (FWD FITTING), TIGHTENED FITTING, CLEANED ENGINE, PERFOMED LEAK CHECK @ FULL POWER AND CRUISE SETTINGS FOR 15 MIN. . NO LEAKS. ENGINE RUN PERFORMED IAW MM 77-11-05.

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