# SDR DL72S952237

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N520DA](https://openairdocs.org/aircraft/N520DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21471
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Exchanger
- Part number: 10614267
- Condition: Failed
- Location: Rt Pack
- 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/DL72S952237

## Discrepancy

ON CLIMBOUT FL 2,900 CABIN WARNING HORN CAME ON, CABIN ALT ROSE 12,000 TO 13,000 FT.  MADE EMEMERGENCY DESCENT, RETURNED TO ATL.  FOUND RIGHT PACK HEAT EXCHANGER BURST AND LEAKING.  REPLACED HEAT EXCHANGER OPERATION NORMAL.

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