# SDR 06FDEA02521

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2006
- Submitted: September 25, 2006
- Operation: Air carrier
- Aircraft: [N521FE](https://openairdocs.org/aircraft/N521FE), registered now
- Make and model: Doug MD-11
- Registry model: [Doug MD-11](https://openairdocs.org/model/mcdonnell-douglas-md-11) (OpenAirDocs)
- Aircraft serial: 48478
- Aircraft time: 50,678 hours, 6,480 cycles
- System (JASC): [5713 · Wing, Longeron/Stringer](https://openairdocs.org/jasc/5713)
- Part: Stringer
- Part number: ARB75122
- Condition: Cracked
- Location: Rt Wing
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/06FDEA02521

## Discrepancy

CRACK FOUND APPROX 11" IN LENGTH DURING HFEC INSPECTION ON RT WING TANK AT THE END OF STRINGER-12 (UPPER STRINGER) AT APPROX WING STA XORS 642.  RHW TANK AT STR END OF STR-12 APPROX XORS 642 REPAIR CARRIED OUT AS PER SRM 57-20-00 FIG 10 VOL I OPTION 3 AND EA1-5720-102225 TITLE: WING-STRINGER 12 (RIGHT HAND) CLIP FABRICATION AND INSTALLATION.  CLASSIFIED MAJOR REPAIR PER GMM 6-2-100.

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