# SDR DALA2017120408423

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2015
- Submitted: December 5, 2017
- Operation: Air carrier
- Aircraft: [N821DX](https://openairdocs.org/aircraft/N821DX), registered now
- Make and model: Boeing 757-26D
- Registry model: [Boeing 757-26D](https://openairdocs.org/model/boeing-757-26d) (OpenAirDocs)
- Aircraft serial: 33961
- Aircraft time: 34,375 hours, 18,672 cycles
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Stiffener
- Condition: Corroded
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017120408423

## Discrepancy

(AIRCRAFT 6821, L/P 2266204) MONITOR INSPECTION LOG REFERENCE ER/A 539845-14 REQUIRES STAGE II DTA APPROVAL WITHIN 24 MONTHS OF 04 DEC 2015. ACCOMPLISHED PERMANENT REPAIR IAW ER/A 539845-14 REV ORIG. CUT OUT CORROSION DAMAGE AND CUT THE STIFFENER AT LBBL 0.23". FABRICATED ALL REPAIR PARTS IN REF ER/A 539845-14 REV. ORIGINAL AND INSTALLED IAW ER/A 539845-14 REV ORIGINAL. REPAIR CLASSIFIED AS MAJOR REPAIR.

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