# SDR 2006FA0000144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2006
- Submitted: February 6, 2006
- Operation: General aviation
- Make and model: Ayres S2RHG-T65
- Registry model: [Ayres S2RHG-T65](https://openairdocs.org/model/ayres-s2rhg-t65) (OpenAirDocs)
- Aircraft serial: 013DC
- Aircraft time: 20 hours, 18 cycles
- System (JASC): [3220 · Nose/Tail Landing Gear](https://openairdocs.org/jasc/3220)
- Part: Pin
- Condition: Mismanufactured
- Location: Tailwheel Lock
- Component: Lock
- Component part number: S2RGHT65
- 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/2006FA0000144

## Discrepancy

AIRCRAFT TAIL WHEEL LOCKING / UNLOCKING MECHANISH NOT SATISFACTORY PER PILOT'S REPORT.  FOUND TAIL WHEEL LOCKING PIN OUTSIDE DIAMETER WAS NOT SUFFICIENT TO ALLOW THE LOCK PIN TO SLIDE WITHIN ITS HOUSING.  A 1/4 TURN EITHER WAY FREED THE PIN.  FURTHER, THE PART OF THE PIN THAT PROTRUDES INTO THE TAIL WHEEL CENTERING CAM WAS NOT SUFFICIENTLY ROUNDED OR TAPERED TO ALLOW A RAPID AND POSITIVE ENGAGEMENT.  THE LOCK PIN IS CRITICAL TO THE SAFE LANDING OF THE AIRCRAFT IN GUSTY WIND CONDITIONS.

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