# SDR CA130812008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 12, 2013
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft time: 9,084 hours
- Engine: Allsn 250C47B
- System (JASC): [6321 · Main Rotor Brake](https://openairdocs.org/jasc/6321)
- Part: Bolt
- Part number: D01641
- Condition: Sheared
- Location: Rotor Brake
- Part time: 442 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA130812008

## Discrepancy

(CAN) WHILE PERFORMING INSPECTION, ACCORDING WITH BHT-407-MM1, CH 5-00-00, PARA 5-20 & DOC B0223-OM4, PARA 1.2.  ROTOR BRAKE GUIDE BOLTS FOUND SHEARED, ROTOR BRAKE PADS WORN EXCESSIVELY AND CAUSED CALIPER WEAR.

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