# SDR UIEA200700442

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2007
- Submitted: December 3, 2007
- Operation: Air carrier
- Aircraft: [N415MC](https://openairdocs.org/aircraft/N415MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 32837
- Aircraft time: 23,147 hours, 3,705 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Cracked
- Location: Lt Wing
- 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/UIEA200700442

## Discrepancy

DURING LEFT WING LIGHT REPLACEMENT THE PLATFORM SUDDENLY LOWERED AND HIT THE LEADING EDGE SKIN. THE PLATFORM MOVEMENT CAUSED A 15 INCH VERTICAL CRACK.  A TIME LIMITED REPAIR WAS ACCOMPLISHED AS PER XEO 57-101007 PART 1 AND SRM 57-41-01 REPAIR 4.  PERMANENT REPAIR IS TO BE ACCOMPLISHED WITHIN 6 MONTH.  NO ADDITIONAL DAMAGE FOUND.

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