# SDR 99ZZZX1680

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N6095S](https://openairdocs.org/aircraft/N6095S), registered now
- Make and model: Snias AS350B2
- Aircraft serial: 2777
- System (JASC): [6420 · Tail Rotor Head](https://openairdocs.org/jasc/6420)
- Part: Spider
- Part number: 350A33200405
- Condition: Failed
- Location: Tail Rotor
- Part time: 869 hours
- Component: 350A33020005
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX1680

## Discrepancy

AIRCRAFT EXPERIENCED LOSS OF TAIL ROTOR CONTROL DURING FLIGHT.  PILOT REPORTED HE COULD ONLY SLIGHTLY MOVE TAIL ROTOR PEDALS.  PILOT EXECUTED A SUCCESSFUL RUN-ON LANDING ON A HARD SURFACE RUNWAY WITHOUT CAUSING ANY DAMAGE TO ACFT.  EXAMINATION OF THE ACFT REVEALED THE ROTATING SPIDER (PN 350A33-2129-00) HAD BEEN COMPLETELY SEVERED AND THE TAIL ROTOR WAS BEING DRIVEN BY  PITCH CHANGE LINKS.  THE SPIDER BEARING (PN 6010-2RS1MT33CA) APPARENTLY SEIZED AND CUT THROUGH THE ROTATING SPIDER.  SPIDER ASSY WAS REMOVED FROM ACFT FOR FURTHER EVALUATION.  PART TAGGED WITH FAA FORM 8020-2 (ACFT/PARTS IDENTIFICATION AND RELEASE).  ROTORCRAFT CERTIFICATION OFFICE (ASW-170) WAS NOTIFIED OF THE MALFUNCTION AND PART DISPOSITION.

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