# SDR K3HA980141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 30, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N354PA](https://openairdocs.org/aircraft/N354PA), registered now
- Make and model: Boeing 727225
- Aircraft serial: 20624
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Out Flow Valve
- Condition: Obstructed
- Location: Cabin
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/K3HA980141

## Discrepancy

UNABLE TO PRESSURIZE, DUMPED FUEL AND RETURNED FOR LANDING.  TROUBLESHOT, FOUND INSULATION BLANKET OBSTRUCTING LEFT HAND OUT FLOW VALVE.  REMOVED OBSTRUCTION AND CLEANED OUT FLOW VALVES PER MM 21-30-11.  AIRCRAFT PRESSURIZED OK PER MM 21-30-0.

---
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.