# SDR DL73K021188

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2002
- Submitted: October 22, 2002
- Operation: Air carrier
- Aircraft: [N321DL](https://openairdocs.org/aircraft/N321DL), registered now
- Make and model: Boeing 737232
- Aircraft serial: 23093
- Aircraft time: 52,243 hours, 38,904 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 7638101
- Part serial: 80A2408
- Condition: Failed
- Location: Cabin Pressure
- 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/DL73K021188

## Discrepancy

DURING CLIMB CABIN ALTITUDE WARNING HORN SOUNDED.  CABIN ALTITUDE ABOVE 10000 FT CABIN VSI +500/MIN IN AUTO MODE WITH NO WARNING LIGHTS OR FAILURE OF AUTO MODE SHOWING.  CABIN ALTITUDE CONTROLLED WITH MANUAL CONTROL.  REPLACED CABIN PRESS CONTROLLER AND CONTROL PANEL PER M/M AND PERFORMED OPERATIONAL TEST AND CABIN LEAK DOWN CHECK NTF.

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