# SDR QMLA2013042213057

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2013
- Submitted: April 22, 2013
- Operation: Air carrier
- Aircraft: [N408AM](https://openairdocs.org/aircraft/N408AM), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53445
- Aircraft time: 5,803 hours, 12,878 cycles
- Engine: Allsn 250C47B
- System (JASC): [6500 · Tail Rotor Drive System](https://openairdocs.org/jasc/6500)
- Part: Disc Pack
- Part number: 407340340103
- Condition: Cracked
- 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/QMLA2013042213057

## Discrepancy

AIRWORTHINESS INSPECTION FOUND TAIL ROTOR AFT SHORT SHAFT COUPLING DISC PACK CRACKED.

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