# SDR 4TXA2026050700324

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2026
- Submitted: May 7, 2026
- Operation: General aviation
- Aircraft: [N802TJ](https://openairdocs.org/aircraft/N802TJ), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24874
- Aircraft time: 38,896 hours, 30,687 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: Control Module
- Part number: 7110025
- Part serial: HC70267
- Condition: Intermittent
- Location: Cabin Pressure
- Part time: 1 hours, 1 cycles
- Stage of operation: CR
- 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/4TXA2026050700324

## Discrepancy

INTERMITTENT WARNING HORN CABIN ALTITUDE LIGHT ILLUMINATED FL 270 CAB ALTITUDE SHOWING 11000 FT. FOLLOWED QRH AND LANDED THE AIRCRAFT IN MUCU SAFELY. EMERGENCY DECLARED.

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