# SDR 97ZZZX3893

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N7929J
- Make and model: Bell 206B-3
- Registry model: [Bell 206B-3](https://openairdocs.org/model/bell-helicopter-textron-206b-3) (OpenAirDocs)
- Aircraft serial: 663
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Driveshaft
- Part number: 206040931009
- Condition: Failed
- Location: T/R Seg Nr 4
- Stage of operation: AP
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX3893

## Discrepancy

DURING APPROACH TO A BOAT WITH AN EXTERNAL LOAD, THE AFT COUPLING OF THE NR 4 TAIL ROTOR DRIVESHAFT SEGMENT DEBONDED FROM THE SHAFT CAUSING A TAIL ROTOR FAILURE.  THIS IS THE SECOND SUCH FAILURE WITH THE SAME AIRCRAFT.  PREVIOUS FAILURE WAS REPORTED ON MALFUNCTION OR DEFECT REPORT DATED APRIL 26, 1994.

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