# SDR UIEA2015120900711

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2015
- Submitted: December 9, 2015
- Operation: Air carrier
- Aircraft: [N780BA](https://openairdocs.org/aircraft/N780BA), registered now
- Make and model: Boeing 747409
- Aircraft serial: 24310
- Aircraft time: 76,891 hours, 14,922 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- 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/UIEA2015120900711

## Discrepancy

CORROSION, SKIN, LT WING UPPER SKIN AT WBL 849.  BLEND OUT THE DAMAGED AREA & MEASURED REWORK AREA LX WXD = 1.1" X 0.9" X 0.007" WHICH IS WITHIN ALLOWABLE LIMIT IAW SRM 57-20-01-1A-1 FIG 101 DETAIL II REV 32.  DETAIL DATA REA TO J/C ATTACHING SHEET NO. 0069538 & APPLY PROTECTIVE TREATMENT IAW SRM 51-20-01 REV 32.  4. JOB COMPLETED & CONDITIION * CHECK .

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