# SDR ARWA20061003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2006
- Submitted: October 30, 2006
- Operation: Air carrier
- Aircraft: N450ML
- Make and model: Doug DC-10-30F
- Registry model: [Doug DC-10-30F](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f) (OpenAirDocs)
- Aircraft serial: 47831
- Aircraft time: 94,915 hours, 16,961 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Seal
- Condition: Missing
- Location: Outflow Valve
- Stage of operation: CL
- 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/ARWA20061003

## Discrepancy

LOG PAGE NR 125045. UNABLE TO CONTROL PRESSURE IN NORM, AUT, IN MAN CABIN START CLIMB WITH OUTFLOW VALVE FULLY CLOSED. FOUND SEAL MISSING ON OUT-FLOW BUTTERFLY VALVE; INSTALLED SEAL; ON OPERATIONAL CHECK FOUND NORMAL IAW MM 21-30-00.

---
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.