# SDR AC2A2025122013901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2025
- Submitted: December 20, 2025
- Operation: Air carrier
- Aircraft: [N639CF](https://openairdocs.org/aircraft/N639CF), registered now
- Make and model: Agusta AW139
- Registry model: [Agusta AW139](https://openairdocs.org/model/agustawestland-philadelphia-aw139) (OpenAirDocs)
- Aircraft serial: 41604
- Aircraft time: 402 hours, 506 cycles
- System (JASC): [6322 · Rotorcraft Cooling Fan System](https://openairdocs.org/jasc/6322)
- Part: Cooling Fan
- Part number: 3G6320V03855
- Part serial: 234100158
- Condition: Sheared
- Location: Zone 100
- Part time: 402 hours, 506 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AC2A2025122013901

## Discrepancy

DURING TAXI IN FROM RUNWAY, MGB TEMP WARNING ILLUMINATED.

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