# SDR DALA2022041102504

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2022
- Submitted: April 11, 2022
- Operation: Air carrier
- Aircraft: [N685DA](https://openairdocs.org/aircraft/N685DA), registered now
- Make and model: Boeing 757232
- Aircraft serial: 27588
- Aircraft time: 87,987 hours, 34,989 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: None
- Condition: None
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2022041102504

## Discrepancy

SHIP 685 -ATB- DUE TO RT DUCT LEAK AND LEFT PACK ALREADY ON MEL. UNABLE TO CONTINUE IN CURRENT CONFIGURATION. CORRECTIVE ACTION: REMOVED AND REPLACED PRIMARY AND SECONDARY HEAT EXCHANGER. REMOVED AND REPLACED RT ACM. FAILED SINGLE PACK PSI CONFIDENCE CK. RESECURED LT AND RT SLIDING WINDOWS, OPS CK NML.

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