# SDR UIEA200800109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2008
- Submitted: April 15, 2008
- Operation: Air carrier
- Aircraft: N523MC
- Make and model: Boeing 747-2D7B
- Registry model: [Boeing 747-2D7B](https://openairdocs.org/model/boeing-747-2d7b) (OpenAirDocs)
- Aircraft serial: 21782
- Aircraft time: 95,369 hours, 19,490 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Panel
- Condition: Delaminated
- 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/UIEA200800109

## Discrepancy

LT WING UPPER FIXED LEADING EDGE ON UPPER SURFACE HAS AN AREA OF 30.0 INCHES BY 10.0 INCHES OF DELAMINATION.  ACCOMPLISHED PERMANENT REPAIR AS PER B747-200 SRM 51-40-09, FIG 18, SHEET 3 AND 5, PREPREG 250 DEGREES F CURE PER SRM 51-40-12.  ALSO, REFERENCE ATLAS AIR EO NR 4757A425.

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