# SDR AALA20100507DFW01

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2010
- Submitted: September 20, 2010
- Operation: Air carrier
- Aircraft: [N576AA](https://openairdocs.org/aircraft/N576AA), registered now
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 53153
- Aircraft time: 54,947 hours, 27,986 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Regulator
- Part number: 10803291
- Condition: Faulty
- Location: Cabin Pressure
- 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/AALA20100507DFW01

## Discrepancy

DFW - CREW REPORTED ON CLIMB THE CABIN RATE OF PRESSURE CONTINUED TO RISE BEYOND NORMAL.  THE FLOW LIGHT CAME ON AND THE OUTFLOW VALVE FULLY CLOSED AND THEN THE CABIN RATE OF CLIMB RETURNED TO NORMAL.  FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  REPLACED AIR PRESSURE REGULATOR.  SYSTEM GROUND CHECKED NORMAL OPERATION.

---
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.