# SDR IXXA090013O

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2009
- Submitted: March 30, 2009
- Operation: Air carrier
- Aircraft: N41CX
- Make and model: Doug DC-8-62F
- Registry model: [Doug DC-8-62F](https://openairdocs.org/model/douglas-dc-8-62f) (OpenAirDocs)
- Aircraft serial: 46129
- Aircraft time: 85,573 hours, 23,127 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Control Valve
- Part number: PS1351
- Part serial: P656
- Condition: Defective
- Location: Cabin Pressure
- Part time: 85,573 hours, 23,127 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IXXA090013O

## Discrepancy

DURING CRUISE FROM KBWI TO LPLA THE CREW WAS UNABLE TO MAINTAIN CABIN PRESSURE ON ONE PACK. THE CREW HAD TO DESCEND TO 10,000 FEET. THE CREW LANDED IN KWRI WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED LEFT FLOW CONTROL VALVE. OPERATIONAL CHECK GOOD IAW DACO MAINTENANCE MANUAL 21-31-0, AND ATI MAINTENANCE MANUAL 21-04-26. AIRCRAFT WAS RETURNED TO SERVICE.

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