# SDR UIEA2013110500550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2013
- Submitted: November 5, 2013
- Operation: Air carrier
- Aircraft: [N854GT](https://openairdocs.org/aircraft/N854GT), registered now
- Make and model: Boeing 747-87UF
- Registry model: [Boeing 747-87UF](https://openairdocs.org/model/boeing-747-87uf) (OpenAirDocs)
- Aircraft serial: 37566
- Aircraft time: 2,332 hours, 396 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Power Loss
- Stage of operation: CR
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2013110500550

## Discrepancy

UNCOMMANDED ROLLBACK OF NR 2 AND NR 4 ENGINES IN ICE CONDITIONS, ENG X THRUST, MASTER CAUTION. ENGINES RETURNED TO NORMAL AFTER EXITING ICE CRYSTALS, NOTIFIED MCC, INSPECTED ENGINES IAW FIM 73-21-00 STEP 1 THROUGH 9, NFF, OK FOR CONTINUED SERVICE.

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