# SDR CALA2011121500811

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2011
- Submitted: December 15, 2011
- Operation: Air carrier
- Aircraft: [N77871](https://openairdocs.org/aircraft/N77871), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32526
- Aircraft time: 21,768 hours, 6,319 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Part number: 75735013
- 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/CALA2011121500811

## Discrepancy

SUPPORT TASK - LEFT WING TOP SKIN AND RISER CRACKED AT WS 211.59 STRINGER U12.  LEFT WING TOP SKIN AND RISER CRACKED AT WS 211.5 BW STR U12 REPLACED AS PER SRM 51-10-02 AND NEW PANEL INSTALLED AS PER APB DWG 7574-3500 REV B AND FORM 44.0008 ATTACHED ITEM 1 - 4 ACCOMPLISHED.

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