# SDR WRLA20120801554

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2012
- Submitted: August 3, 2012
- Operation: Air carrier
- Aircraft: N742WA
- Make and model: Boeing 747-4H6
- Registry model: [Boeing 747-4H6](https://openairdocs.org/model/boeing-747-4h6) (OpenAirDocs)
- Aircraft serial: 27071
- Aircraft time: 69,451 hours, 9,005 cycles
- Engine: Pwa PW4056
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin Panel
- Condition: Cracked
- Location: Rt 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/WRLA20120801554

## Discrepancy

MX HAS ADVISED THAT A CRACK APPROX 3 1/2 FEET IN LENGTH AND ANOTHER CRACK APPROX 8 INCHES IN LENGTH HAVE BEEN FOUND ON TOP OF THE RIGHT WING AFT OF THE LEADING EDGE.  THE CRACKS ARE IN 2 SEPARATE PANELS.

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