# SDR ABXA20170529064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2017
- Submitted: June 13, 2017
- Operation: Air carrier
- Aircraft: [N372CM](https://openairdocs.org/aircraft/N372CM), registered now
- Make and model: Boeing 767338
- Aircraft serial: 25575
- Aircraft time: 83,314 hours, 27,265 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: 732591D
- Part serial: 2101
- Condition: Failed
- Location: Equip Cooling
- Stage of operation: TX
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20170529064

## Discrepancy

DURING ENGINE START, AN EICAS MESSAGE FOR FWD EQUIPMENT COOLING DISPLAYED AND THE EQUIPMENT COOLING VALVE LIGHT ILLUMINATED AND THE FORWARD EQUIPMENT COOLING EXHAUST FAN CIRCUIT BREAKER TRIPPED OPEN.  A STRONG ELECTRICAL BURNING ODOR WAS OBSERVED. THE AIRPLANE WAS REMOVED FROM SERVICE. THE CAUSE OF THE EICAS MESSAGE WAS A FAULTY FORWARD EQUIPMENT COOLING EXHAUST FAN.  THE EQUIPMENT COOLING EXHAUST FAN WAS REPLACED. THE CAUSE OF THE BURNING ODOR WAS NOT DETERMINED.

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