# SDR ANCF200600027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2006
- Submitted: July 31, 2006
- Operation: Air carrier
- Aircraft: N984AN
- Make and model: Boeing 767383
- Aircraft serial: 24357
- Aircraft time: 65,762 hours, 14,640 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ANCF200600027

## Discrepancy

FWD CRGO GDD EX VALS DISPLAYED AFTER T/O AIRPLANE DID NOT NOT PRESSURIZE.  SEE DMI 227 IAW MEL 21-28-1 PREVIOUSLY OPENED.  MEL PROCEDURE WAS ACCOMPLISHED DEACTIVATING BACKUP VALVE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.