# SDR MEX2003505

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2003
- Submitted: November 12, 2003
- Operation: Air carrier
- Aircraft: [N945AS](https://openairdocs.org/aircraft/N945AS), registered now
- Make and model: Doug MD 83
- Registry model: [Doug MD 83](https://openairdocs.org/model/mcdonnell-douglas-md-83) (OpenAirDocs)
- Aircraft serial: 49643
- System (JASC): [3000 · Ice/Rain Protection System](https://openairdocs.org/jasc/3000)
- Part: Valve
- Part number: 39244421
- Part serial: 30200
- Condition: Failed
- Location: Anti Ice System
- Part time: 11,128 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MEX2003505

## Discrepancy

CAPTAIN REPORTED THAT DURING AIR FOIL ICE PROTECT WAS TURNED ON, THERE WAS A PRESSURIZATION LEAK WITH FLOW LIGHT ON AND CLIMB RATE BETWEEN 500 AND 800 FPM.  TO ATTEND THE FAIL, THE TECH PERSONNEL REPLACED THE PNEUMATIC AUGMENTATION VALVE, PRESSURE REGULATOR VALVE OF LEFT AIR CONDITIONING AN THE ICE PROTECTION VALVE IAW MM 36-1001, 21-31-01 AND 31-10-01 RESPECTIVELY, TESTS CORRECT.(K)

---
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.