# SDR 98ZZZX3015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N504MA](https://openairdocs.org/aircraft/N504MA), registered now
- Make and model: Cessna 172P
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (OpenAirDocs)
- Aircraft serial: 17275917
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: Brake Cylinder
- Part number: C360746
- Condition: Cracked
- Location: Caliper
- Part time: 4,868 hours
- 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/98ZZZX3015

## Discrepancy

DURING ANNUAL INSPECTION, BOTH BRAKE CYLINDERS WERE FOUND CRACKED AT UPPER CALIPER BOLT HOLE.  BELIEVED CAUSED BY AGE (ORIGINAL EQUIPMENT) AND POSSIBLY PAST OVERTORQUE OF BOLTS.  REPLACED BOTH ASSEMBLIES.

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