# SDR SWAA2024123081269

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2024
- Submitted: December 30, 2024
- Operation: Air carrier
- Aircraft: [N440LV](https://openairdocs.org/aircraft/N440LV), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29835
- Aircraft time: 71,215 hours, 42,383 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Condition: Seized
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2024123081269

## Discrepancy

ON CLIMB AND DESCENT LEFT PACK HAD WET SOCK SMELL IN COCKPIT AND FWD GALLEY.   PERFORMED CONDITIONAL INSPECTION PER AMM 05-51-56. FOUND SMELL TO BE FROM LEFT PACK. FWD LEFT PACK TO MEL 21-1-01.  RAN LEFT PACK; PACK TRIP OFF LIGHT ILLUMINATED. FOUND ACM SEIZED. REPLACED LEFT PACK AIR CYCLE MACHINE IAW AMM 21-51-04. LEAK AND OPS CHECKS GOOD.

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