# SDR 99UAL900306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N302UA](https://openairdocs.org/aircraft/N302UA), registered now
- Make and model: Boeing 737322
- Aircraft serial: 23643
- Engine: Ge CFM56*
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Controller
- Condition: Failed
- Location: Rt Pack
- Component: Allied Signa, 6075182
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99UAL900306

## Discrepancy

THE RIGHT PRESSURIZATION PACK CIRCUIT BREAKER TRIPPED.  *S/D*  FAILURE OF THE RIGHT PACK RAM AIR CONTROLLER AND SENSOR.  REPLACED BOTH THE RAM AIR TEMPERATURE SENSOR AND RAM AIR CONTROLLER.

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