# SDR COZA20151209069

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2015
- Submitted: December 10, 2015
- Operation: Air carrier
- Aircraft: N732KA
- Make and model: Boeing 737-500
- Registry model: [Boeing 737-500](https://openairdocs.org/model/boeing-737-500) (OpenAirDocs)
- Aircraft serial: 25065
- Aircraft time: 45,118 hours, 38,877 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Control Valve
- Part number: 36052392
- Part serial: 092568500153
- Condition: Loose
- Location: Apu
- Component: Apu, Hnywl, GTCP85129H
- Component part number: 380428101
- 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/COZA20151209069

## Discrepancy

FOUND PROPORTIONAL CONTROL VALVE BODY LOOSE.  VALVE IS LOCATED ON LOWER SIDE OF THE APU.  REPLACED VALVE AND OPERATIONAL CHECK NORMAL.

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