# SDR 2009FA0000145

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2009
- Submitted: February 26, 2009
- Operation: General aviation
- Aircraft: [N7255T](https://openairdocs.org/aircraft/N7255T), registered now
- Make and model: Beech A36
- Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (OpenAirDocs)
- Aircraft serial: E3755
- Aircraft time: 426 hours, 300 cycles
- Engine: Cont IO550B
- Engine time: 426 hours, 300 cycles
- Propeller: Hartzl PHCC3YF1
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Bolt
- Part number: AN2310
- Condition: Wrong Part
- Location: Zone 300
- Part time: 426 hours, 300 cycles
- Component: Torque Tube, Beech
- Component part number: 3361000039
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000145

## Discrepancy

DURING THE COMPLIANCE WITH RECOMMENDED SB 27-3929, BOTH ELEVATOR TORQUE TUBES MOUNT BOLTS (8 TOTAL, 4 PER SIDE) WERE SHANKED OUT AND NOT TIGHT AT THE ATTACH POINTS. THE IPC CALLS FOR BOLTS AN-23-10, AND THE REPLACEMENT BOLTS ARE AN23-9.  THIS SHOULD BE A MANDATORY SB SINCE IT INVOLVES THE ATTACHMENT OF PRIMARY FLIGHT CONTROLS.

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