# SDR AALA202402128306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2024
- Submitted: February 12, 2024
- Operation: Air carrier
- Aircraft: [N875NN](https://openairdocs.org/aircraft/N875NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33220
- Aircraft time: 36,755 hours, 15,646 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Selector
- Part number: 10194392001
- Part serial: 2017110180
- Condition: Inoperative
- Location: Cabin Pressure
- Part time: 509,841 hours, 504,420 cycles
- Stage of operation: NR
- 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/AALA202402128306

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: PRESSURE UNCONTROLLABLE AFTER TAKE OFF. AIRCRAFT  RETURN AND LANDED SAFELY AT MIA WITHOUT FURTHER INCIDENT. REMOVED AND REPLACED CABIN PRESSURE CONTROL PANEL AS PER AMM 21-31-02, TEST NORMAL NO FURTHER DEFECTS NOTED.

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