# SDR 2014FA0000371

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2014
- Submitted: June 6, 2014
- Operation: General aviation
- Aircraft: [N9690Q](https://openairdocs.org/aircraft/N9690Q), registered now
- Make and model: Cessna 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (OpenAirDocs)
- Aircraft serial: 17265774
- Aircraft time: 2,554 hours
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Fuel Tank
- Part number: VENTLINE
- Condition: Cracked
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2014FA0000371

## Discrepancy

RIGHT FUEL TANK CRACKED ON TOP SEAM.  TANK WAS REPLACED.  OPERATOR NOTICED A VERY LOUD OIL CANNING SOUND FROM RT WING AFTER SHUTDOWN FOLLOWING A 1 HOUR FLIGHT.  FURTHER INVESTIGATION FOUND A PARTIAL BLOCKAGE OF FUEL TANK VENT CAUSING OIL CANNING OF FUEL TANK DUE TO VACUUM IN FUEL TANK.  VENT LINE WAS CLEARED AND VENTED CAP WAS REPLACED WITH NEW.

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