# SDR VJ32002F00071

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2002
- Submitted: September 24, 2002
- Operation: Air carrier
- Aircraft: [N5599P](https://openairdocs.org/aircraft/N5599P), registered now
- Make and model: Beech F33A
- Registry model: [Beech F33A](https://openairdocs.org/model/beech-f33a) (OpenAirDocs)
- Aircraft serial: CE1344
- Engine: Cont IO520BB
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Pump
- Part number: RA216CW
- Part serial: B2557
- Condition: Failed
- Location: Dry Air
- Part time: 583 hours
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VJ32002F00071

## Discrepancy

DURING GROUND RUN UP OUTPUT OF ENGINE DRIVEN DRY AIR PUMP FAILED TO PUT OUT PROPER PRESSURE AT IDLE RPM.  RAN AIRCRAFT UP AND AIR PRESSURE STILL LOW AT HIGHER RPM.  SUSPECT PROBABLE CAUSE IS HEAT AND VANES WEARING ON THIS DRY AIR PUMP.

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