# SDR YTRA52117/175/178

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2013
- Submitted: July 30, 2013
- Operation: Air carrier
- Aircraft: [N175AL](https://openairdocs.org/aircraft/N175AL), registered now
- Make and model: Bell 206L-4
- Registry model: [Bell 206L-4](https://openairdocs.org/model/bell-helicopter-textron-canada-206l-4) (OpenAirDocs)
- Aircraft serial: 52117
- Aircraft time: 24,024 hours, 12,549 cycles
- Engine: Allsn 250C30P
- Engine time: 3,932 hours, 5,897 cycles
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Mast
- Part number: 206040535109
- Part serial: MO210
- Condition: Mismanufactured
- Location: Main Rotor
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YTRA52117%2F175%2F178

## Discrepancy

MAST POLE MFG INCORRECTLY.  SCALLOP FOR DRIVE LINK THROUGH BOLT MACHINED IN WRONG LOCATION.

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