# SDR MK9A20150617001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 2015
- Submitted: July 16, 2015
- Operation: Air carrier
- Aircraft: [N859MA](https://openairdocs.org/aircraft/N859MA), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B2424
- Aircraft time: 4,244 hours, 8,121 cycles
- Engine: Pwa PT6A114A
- Engine time: 4,244 hours, 7,945 cycles
- System (JASC): [7530 · Compressor Bleed Control](https://openairdocs.org/jasc/7530)
- Part: Regulator
- Part number: 1H7521
- Part serial: 6AV64
- Condition: Failed
- Location: Engine
- Part time: 2,957 hours, 5,422 cycles
- Stage of operation: TO
- How discovered: C
- Nature of condition: E
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MK9A20150617001

## Discrepancy

LOUD NOISE COMING FROM ENG.

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