# SDR CA090707003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2009
- Submitted: August 3, 2009
- Operation: General aviation
- Make and model: Dhav DHC3
- Aircraft time: 20,480 hours
- Engine: Pwa PT6A34
- Propeller: Hartzl HCB3TN3
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Bleed Valve
- Part number: 310082903
- Condition: Noisy
- Location: Engine
- Stage of operation: DE
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA090707003

## Discrepancy

(CAN) AFTER 382.2 HRS IN ACFT, BLEED VALVE STARTED TO MAKE A HOOTING NOISE AND ALSO PRODUCED VIBRATIONS.  ABOVE SYMPTOMS WERE ONLY SEEN ON PWR REDUCTIONS.  THERE WAS A SERVICEABLE BLEED VALVE INSTALLED FROM ANOTHER ACFT AND PROBLEM WAS RESOLVED.

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