# SDR FDEA202610091507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2026
- Submitted: October 10, 2026
- Operation: Air carrier
- Aircraft: [N995FD](https://openairdocs.org/aircraft/N995FD), registered now
- Make and model: Boeing 757-2Q8
- Registry model: [Boeing 757-2Q8](https://openairdocs.org/model/boeing-757-2q8) (OpenAirDocs)
- Aircraft serial: 25131
- Aircraft time: 51,695 hours, 23,014 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Shutoff Valve
- Part number: 3963982
- Part serial: 317
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202610091507

## Discrepancy

AT FL350, GOT MASTER WARNING CABIN ALTITUDE, WENT  TO 12,000FT. (EMERGENCY DECLARED)   R & R LT PACK FLOW CONTROL AND SHUTOFF VALVE. OPS CHECK, LEAK CHECK GOOD.

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