# SDR AALA202405225780

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2024
- Submitted: May 22, 2024
- Operation: Air carrier
- Aircraft: [N822NN](https://openairdocs.org/aircraft/N822NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31085
- Aircraft time: 42,844 hours, 17,926 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Cabin Pressure
- Condition: Faulted
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202405225780

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CABIN ALTITUDE LIGHT ILLUMINATED ON CLIMB OUT; AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT MEX. ACCOMPLISHED PRESSURIZATION SYSTEM GROUND TEST, PER AMM 21-31-00-700-802. NO FAULT NOTED. AS WELL AS ACCOMPLISHED PRESURIZATION SYSTEM MANUAL MODE TEST, PER AMM 21-31-00-710-801. NO FAULT NOTED.

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