# SDR SWIA201332851

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2013
- Submitted: February 25, 2013
- Operation: Air carrier
- Aircraft: [N472CA](https://openairdocs.org/aircraft/N472CA), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7667
- Aircraft time: 26,554 hours, 23,342 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA201332851

## Discrepancy

LOST PRESSURE IN CABIN AND RECEIVED A SERVICE DOOR MESSAGE.  (FLT 5603)  INSPECTED SERVICE DOOR CUTOUT & EXTERNAL, FOUND NO DEFECTS.  OPERATIONAL TEST OF CPCU 1 & CPCU 2 IAW AMM, PRESSURIZED AIRCRAFT ON ENGINE BLEED ON BOTH CABIN PRESSURE CONTROLLERS ONE AT A TIME WITH NO LOSS OF PRESSURE AT DELTA-P 4.0.  OPS CHECK GOOD.

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