# SDR U2RA2026011000029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2026
- Submitted: January 10, 2026
- Operation: Air carrier
- Aircraft: [N663CA](https://openairdocs.org/aircraft/N663CA), registered now
- Make and model: Boeing 747-400
- Registry model: [Boeing 747-400](https://openairdocs.org/model/boeing-747-400) (OpenAirDocs)
- Aircraft serial: 35237
- Aircraft time: 64,169 hours, 11,671 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Cracked
- Location: Zone 500
- 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/U2RA2026011000029

## Discrepancy

THREE INCH CRACK WAS IDENTIFIED IN THE LEFT WING LEADING EDGE UPPER SPLICE PLATE.  ACCOMPLISHED MAJOR REPAIR IAW FLIGHT VEHICLES CONSULTING INC. ENGINEERING ORDER CONTROL  25197-3.

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