# SDR COEA2020100604807

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2020
- Submitted: October 6, 2020
- Operation: Air carrier
- Aircraft: N807HC
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 432
- Aircraft time: 29,563 hours, 31,028 cycles
- Engine: Pwc PW127E
- System (JASC): [7797 · Engine Indicating System Wiring](https://openairdocs.org/jasc/7797)
- Part: Connector
- Condition: Dirty
- Location: Nr 2 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COEA2020100604807

## Discrepancy

FLIGHT 1700, ENROUTE HNL-ITO AIR TURNBACK/DISCREPANCY: NR 2 ENGINE TORQUE FLUCTUATES 10-15% IN CRUISE.  RETURNED TO HNL.  NO EMERGENCY DECLARED.  LANDED WITHOUT INCIDENT.  CORRECTIVE ACTION: AFTER EXTENSIVE TROUBLESHOOTING, MAINTENANCE CLEANED THE NR 2 EEC CANNON PLUGS.  SUCCESSFUL ENGINE GROUND RUN UPS.

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