# SDR IPXA2026012020848

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2026
- Submitted: January 20, 2026
- Operation: Air carrier
- Aircraft: [N580UP](https://openairdocs.org/aircraft/N580UP), registered now
- Make and model: Boeing 747428F
- Aircraft serial: 25632
- Aircraft time: 122,444 hours, 20,957 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Cooling Turbine
- Condition: Warning Message
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2026012020848

## Discrepancy

EMERGENCY DECLARED,  EQUIP COOLING EICAS MESSAGE AT TOP OF DESCENT, QRH PROCEDURE DID NOT CLEAR THE MESSAGE, STATUS MESSAGE EE CLNG EXH FAN AFTER BLOCK OUT, MULTIPLE EE STATUS MESSAGES ON BLOCK IN REF AMM 21-58-00-700-804. ++CYCLE EE COOLING PCA CB, ALL MSG CLEAR, CMC GND TEST PASS, AIRCRAFT OK FOR SERVICE

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