# SDR UIEA2026080500680

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2026
- Submitted: August 5, 2026
- Operation: Air carrier
- Aircraft: [N429MC](https://openairdocs.org/aircraft/N429MC), registered now
- Make and model: Boeing 747481
- Aircraft serial: 24833
- Aircraft time: 124,229 hours, 19,232 cycles
- Engine: Ge CF680C2B1F
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Stage of operation: TO
- How discovered: O
- Nature of condition: E
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2026080500680

## Discrepancy

AIRCRAFT VIBRATION INCREASED WITH POWER ADVANCED.   ENG 1 LOCKED OUT AND 3 ENG FERRY TO ICN. AFTER FERRY FLIGHT, INSPECTED A/C CONDITION, ALL CHECK OK. PERF ENG RUN UP CHECK, NO STS MSG & NO FAULT FOUND IAW AMM 71-00-00.  R & R NR 1 ENG PER W/O 162878 TASK CARD 71-099-02-01. ALL CHECKS OK.

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