# SDR DL72S020338

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 2002
- Submitted: April 3, 2002
- Operation: Air carrier
- Aircraft: [N522DA](https://openairdocs.org/aircraft/N522DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21582
- Aircraft time: 68,415 hours, 51,597 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Valve
- Part number: 32194211
- Condition: Malfunctioned
- Location: Air Conditioning
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72S020338

## Discrepancy

PACKS OVERHEATED ON TAXI OUT.  RETURNED TO GATE.  HAZE IN CABIN.  FOUND RIGHT PACK FREEZING UP,  REPLACED 35 DEGREE CONTROLLER AND VALVE.

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