# SDR DALA2021120207458

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2021
- Submitted: December 2, 2021
- Operation: Air carrier
- Aircraft: [N193DN](https://openairdocs.org/aircraft/N193DN), registered now
- Make and model: Boeing 767332
- Aircraft serial: 28450
- Aircraft time: 101,929 hours, 15,095 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Faulted
- Location: Cabin Pressure
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021120207458

## Discrepancy

SHIP 0193 -MISC- EICAS MESSAGE CABIN AUTO INOP AFTER PUSHBACK. C/W QRH (SELECTED MANUAL CABIN PRESSURE CONTROL). WHILE RETURNING TO BLOCKS, CABIN PRESSURE INCREASED DURING THROTTLE ADVANCEMENT. CREW OPENED OUTFLOW VALVE MANUALLY CAUSING RAPID PRESSURE DECREASE IN CABIN. CORRECTIVE ACTION: REPLACED BOTH CABIN PRESSURE CONTROLLERS.

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