# SDR UIEA2025121901352

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2025
- Submitted: December 22, 2025
- Operation: Air carrier
- Aircraft: [N493MC](https://openairdocs.org/aircraft/N493MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29254
- Aircraft time: 109,094 hours, 17,626 cycles
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Skin
- Condition: Cracked
- Location: Zone 500 Flap
- 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/UIEA2025121901352

## Discrepancy

LEFT WING OTBD AFT FLAP BOTTOM SKIN AT INBD AREA FOUND CRACKED.  LT WING O/B AFT FLAP BOTTOM SKIN AT I/B AREA PERFORMED TIME-LIMITED REPAIR IAW EA 1957A259 PART 1 REV.0. NO FURTHER DEFECTS NOTED.

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