# SDR CA971231006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- System (JASC): [6321 · Main Rotor Brake](https://openairdocs.org/jasc/6321)
- Part: Bolt
- Part number: D01521
- Condition: Worn
- Location: Rotor Brake
- Part time: 852 hours
- Component: 206340301103
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA971231006

## Discrepancy

(CAN) AFTER BELL ADVISORY, ROTOR BRAKE ASSY CHECKED AND ALL 4 CALIPER TO ROTOR BRAKE PAD THRU BOLTS WERE FOUND WORN 1/3 TO 1/2 WAY THROUGH.  WILL CHECK EVERY 200 HOURS.

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