# SDR UIEA2015041900239

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2015
- Submitted: April 20, 2015
- Operation: Air carrier
- Aircraft: [N408MC](https://openairdocs.org/aircraft/N408MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29261
- Aircraft time: 67,107 hours, 10,866 cycles
- Engine: Ge CF680C2B1F
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Failed
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2015041900239

## Discrepancy

DURING TAKEOFF ROLL & CLIMB OUT, NR 1 ENGINE SURGED +/- 3-4 PERCENT N1 WITH 50 DEGREE INCREASE IN EGT.  ACCOMPLISHED CHECK LIST.  ENG 1 STABILIZED AT CRUISE. STATUS MESSAGE, NR 1 ENGINE CONTROL.   BORESCOPE INSPECTION ACCOMPLISHED IAW AMM 72-00-00-206-001-J00.  FOUND MULTIPLE BLADES WITH DAMAGED LE, BENT, TEARS & MID-SPAN SHROUD SHINGLING & CONTACT WITH GUIDE VANES, DAMAGE OUT OF LIMITS.  MAX POWER ASSURANCE TEST ACCOMPLISHED IAW EO 1972A568.

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