# SDR UIEA2025111801308

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2025
- Submitted: November 21, 2025
- Operation: Air carrier
- Aircraft: [N249BA](https://openairdocs.org/aircraft/N249BA), registered now
- Make and model: Boeing 747409
- Aircraft serial: 24309
- Aircraft time: 88,550 hours, 16,833 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- Location: Zone 500
- 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/UIEA2025111801308

## Discrepancy

CORROSION ON LT WING UPPER SKIN LOWER SURFACE AT WS 1538.   REMOVED THE AFFECTED FASTENER IAW SRM 51-40-02-0G-0 REV 62. BLENDED OUT THE DAMAGED AREA IAW SRM 51-10-02-0G-0 REV 62.  PERFORMED NDT INSPECTION, REFER TO DATA SHEET 11633434-1 & DATA SHEET 11633434-2.  ACCOMPLISHED EI T2025A57M-2454 REV 1. CHECKED NORMAL.

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