# SDR K11A2010061772301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2010
- Submitted: June 23, 2010
- Operation: Air carrier
- Aircraft: [N723CK](https://openairdocs.org/aircraft/N723CK), registered now
- Make and model: Boeing 727-2H3
- Registry model: [Boeing 727-2H3](https://openairdocs.org/model/boeing-727-2h3) (OpenAirDocs)
- Aircraft serial: 20545
- Aircraft time: 59,814 hours, 39,153 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Control Valve
- Part number: 39271611
- Part serial: P1649
- Condition: Closed
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/K11A2010061772301

## Discrepancy

PRESSURIZATION WOULD NOT HOLD CABIN ALTITUDE ON ONE PACK AT 10,000 MSL.

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