# SDR 97ZZZX3208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N15SA](https://openairdocs.org/aircraft/N15SA), registered now
- Make and model: Enstrm F28C
- Aircraft serial: 469
- System (JASC): [6710 · Main Rotor Control](https://openairdocs.org/jasc/6710)
- Part: Socket
- Part number: 28161861
- Condition: Cracked
- Location: Collective
- Part time: 3,093 hours
- Stage of operation: HO
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX3208

## Discrepancy

AFTER GROUND RUN AND HOVER TO CHECK ENGINE PERFORMANCE, AIRCRAFT WAS LANDED AND COLLECTIVE WAS LOWERED TO SECURE FRICTION.  MODERATE PRESSURE WAS APPLIED AND BEFORE FRICTION COULD BE SET, A BANG WAS HEARD.  THE PILOT'S COLLECTIVE STICK DROPPED APPROXIMATELY 1 INCH.  FURTHER INSPECTION, FOUND PILOT'S COLLECTIVE SOCKET HAD CRACKED ON AFT SIDE ABOVE BOLTS SECURING TO TORQUE TUBE.

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