# SDR AALA2019061109013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2019
- Submitted: June 11, 2019
- Operation: Air carrier
- Aircraft: [N510UW](https://openairdocs.org/aircraft/N510UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3858
- Aircraft time: 37,082 hours, 13,287 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 2079113AC
- Part serial: 0954547
- Condition: Faulty
- Location: Cabin Pressure
- Part time: 37,082 hours, 13,287 cycles
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: G
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2019061109013

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT DECLARED AN EMERGENCY INTO CLT ON ACCOUNT OF PRESSURIZATION PROBLEM. OXYGEN MASKS DEPLOYED. FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE REPORTS PRESSURIZATION CONTROLLER #2 FAULT 21-31-34. REPLACED #2 CONTROLLER IAW TSM 21-31-00-810-827-A AND 810-809-A. PERFORMED OPERATIONAL TEST IAW AMM 21-31-00-710-002-A. NO FAULTS NOTED.

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