# SDR EVCA201601200023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 2015
- Submitted: January 13, 2016
- Operation: Air carrier
- Aircraft: [N488AE](https://openairdocs.org/aircraft/N488AE), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53428
- Aircraft time: 7,876 hours, 27,081 cycles
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Drive Shaft
- Part number: 407040302117S
- Condition: Worn
- Location: Tail Rotor
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EVCA201601200023

## Discrepancy

NUMBER 2 TAIL ROTOR DRIVE SHAFT FOUND TO HAVE PITTING & A WEAR STEP ON COUPLING SPLINES.

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