# SDR ABXA20240702129

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 2024
- Submitted: July 4, 2024
- Operation: Air carrier
- Aircraft: [N390CM](https://openairdocs.org/aircraft/N390CM), registered now
- Make and model: Boeing 767338
- Aircraft serial: 25575
- Aircraft time: 55,620 hours, 24,425 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Warning Message
- Condition: Illuminated
- Location: Instr Panel
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20240702129

## Discrepancy

DOOR CLOSED  AND DURING ENGINE START .EQ COOL EXT FAN 1 AND 2 STATUS MSG AFTER START. ENGINE WAS SHUT DOWN AND MTX ENTERED FLIGHT DECK . AND GROUNDED AC .MTX RE-RACKED LEFT AND RIGHT ECS CONTROL CARDS M861 AND M862, NO HELP. CYCLED EQUIPMENT COOLING SELECTOR SWITCH, VERIFIED BOTH EXHAUST FANS RUNNING MESSAGE CLEANED. ACCOMPLISHED COOLING FAN FIM 21-26FT 851. EQUIPMENT COOLING OPS CHECK GOOD IAW B767 AMM 21-26-00. ACCOMPLISHED BOTH ENGINE IDLE RUN IAW B767 AMM 71-00-00, NO DEFECTS. A/C REMAINS ETOPS 180 .AND RETURNED AC TO SERVICE

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