# SDR UALA2010020100401

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2010
- Submitted: February 1, 2010
- Operation: Air carrier
- Aircraft: [N655UA](https://openairdocs.org/aircraft/N655UA), registered now
- Make and model: Boeing 767222
- Aircraft serial: 25393
- Aircraft time: 73,442 hours, 11,951 cycles
- Engine: Pwa PW4060
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Heat Exchanger
- Part number: 1942722
- Part serial: 207
- Condition: Cracked
- Location: Rt A/C Pack
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010020100401

## Discrepancy

HEAVY AIR LEAK NOISE COMING FROM RT PACK.  FOUND DURING TOWING, UPON VISUAL INSP FOUND SECONDARY HEAT EXCHANGER WITH A CRACK 7 INCHES LONG.  R & R SECONDARY HEAT EXCHANGER. OP CKS NORMAL.

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