# SDR 2021FA0000071

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2021
- Submitted: March 4, 2021
- Operation: General aviation
- Aircraft: [N9347T](https://openairdocs.org/aircraft/N9347T), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S11166
- Aircraft time: 3,244 hours
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake Disc
- Part number: APS16404000
- Part serial: B467C19I7ANN
- Condition: Cracked
- Location: Mlg
- Part time: 200 hours
- 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/2021FA0000071

## Discrepancy

DURING A 100-HOUR INSPECTION A CRACK WAS FOUND ON THE SURFACE OF THE BRAKE DISC.

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