# SDR AALA202603118095

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2026
- Submitted: March 11, 2026
- Operation: Air carrier
- Aircraft: [N156AN](https://openairdocs.org/aircraft/N156AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6983
- Aircraft time: 30,105 hours, 12,026 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 2079113AD
- Part serial: 1590553
- Condition: Warning Message
- Location: Zone 100
- Part time: 30,105 hours, 12,026 cycles
- 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/AALA202603118095

## Discrepancy

ACRT WAS GROUNDED: ACRT RETURNED TO MIA DUE TO THE FLT CREW REPORTING THAT AFTER TAKEOFF RECEIVED CABIN PRESSURE SYS 1 & 2 ECAM FAULTS.  FLT CREW ACCOMPD ECAM PROCEDURES BUT WERE UNABLE TO CONTROL PRESSURIZATION SYS MANUALLY. SUBSEQUENTLY RECEIVED CABIN PRESSURE SAFETY VALVE OPEN INDICATION. THE ACFT LANDED SAFELY AT MIA WITHOUT FURTHER INCIDENT. MAINT REPLACED THE NR 1 CABIN PRESSURE CONTROLLER 11HL (AALA202603118095) AND THE NR 2 CABIN PRESSURE CONTROLLER 12HL (AALA202603117222) IAW AMM 21-31-34. MAINTENANCE ALSO REPLACED CABIN PRESSURE SAFETY VALVE 6HL (AALA202603112750) AND CABIN PRESSURE SAFETY VALVE 7HL (AALA202603110719) PER AMM 21-31-00. A SATISFACTORY OPS CHK WAS ACCOMPLISHED WITH NO FAULTS.

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