# SDR AALA202607215903

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2026
- Submitted: July 21, 2026
- Operation: Air carrier
- Aircraft: [N880BJ](https://openairdocs.org/aircraft/N880BJ), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 66000
- Aircraft time: 16,071 hours, 2,159 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 7010121H03
- Condition: Frozen
- Location: Zone 100
- Stage of operation: AP
- 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/AALA202607215903

## Discrepancy

AIRCRAFT WAS GROUNDED: ON FINAL APPROACH CREW OBSERVED ELECTRICAL BURNING SMELL FOLLOWED BY PACK MODEL & STBY COOLING MSG ON AIR SCHEMATIC PACK ACM L STATUS MSG POST FLIGHT. ACCOMPLISHED SOF CARD 78L00021001. FOUND L/H ACM FROZEN. REF MIC4494149 MAINTENANCE REPLACED AIR CYCLE MACHINE REF. DMC-B787-A-21-52-02-01A-720A-A.

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