# SDR DALA2023090107150

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2023
- Submitted: September 1, 2023
- Operation: Air carrier
- Aircraft: [N3744F](https://openairdocs.org/aircraft/N3744F), registered now
- Make and model: Boeing 737832
- Aircraft serial: 30837
- Aircraft time: 72,336 hours, 27,189 cycles
- Engine: Cfmint CFM567B262
- Engine time: 65,310 hours, 25,013 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023090107150

## Discrepancy

SHIP 3744 -DIV/PRESS- DIVERTED TO ICT DUE TO LOSS OF AUTO PRESSURIZATION. MASKS DID NOT DEPLOY. CORRECTIVE ACTION: MAINTENANCE REPLACED BROKEN SENSE LINE AND PRECOOLER CONTROL VALVE PER B737 AMM 36-11, 36-12.

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