# SDR ASAA0852812

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2008
- Submitted: April 11, 2008
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 1,801 hours, 524 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Control Valve
- Part number: 32895625
- Part serial: 10777
- Condition: Failed
- Location: Bleed Air Sys
- Part time: 1,801 hours, 524 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0852812

## Discrepancy

PNEUMATIC DUCT PRESSURE SPLIT BETWEEN LEFT AND RIGHT SYSTEMS NOTED DURING CLIMB.  REPLACED RIGHTHAND ENGINE PRECOOLER CONTROL VALVE.

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