# SDR UIEA2020042800908

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2020
- Submitted: April 28, 2020
- Operation: Air carrier
- Aircraft: [N477MC](https://openairdocs.org/aircraft/N477MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29255
- Aircraft time: 86,263 hours, 15,306 cycles
- Engine: Ge CF680C2B5F
- System (JASC): [7810 · Engine Collector/Tailpipe/Nozzle](https://openairdocs.org/jasc/7810)
- Part: Sleeve
- Condition: Dented
- Location: Nr 4 Exhaust
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020042800908

## Discrepancy

NO. 4 ENG TURBINE EXHAUST SLEEVE SKIN FOUND DENT AT 9 O/C POSITION.(<P>NO. 4 ENG TURBINE EXHAUST SLEEVE 9 O/C DENT AREA REPAIRED IAW RI-78-11-14013 REV. A. </P>)

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