# SDR 2009FA0000749

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2009
- Submitted: August 28, 2009
- Operation: General aviation
- Aircraft: [N8819U](https://openairdocs.org/aircraft/N8819U), registered now
- Make and model: Cessna 172F
- Registry model: [Cessna 172F](https://openairdocs.org/model/cessna-172f) (OpenAirDocs)
- Aircraft serial: 17252726
- Aircraft time: 5,802 hours
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Yoke
- Part number: 051178216
- Condition: Broken
- Location: Elevator
- Part time: 5,802 hours
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000749

## Discrepancy

THE ELEVATOR YOKE FAILED AT THE LOWER PORTION SLIGHTLY ABOVE (2 INCHES)THE PUSH PULL TUBE ATTACHMENT,DURING FLIGHT CONTROL CHECK. IT WAS FOUND THAT SERVICE BULLETIN SB SEB01-3 HAD NOT BEEN ACCOMPLISHED. THE YOKE WAS CORRODED INTERNALLY AND FAILED. THERE IS SOME INDICATION THAT A CRACK MAY HAVE BEEN PRESENT PRIOR TO THE FAILURE.

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