# SDR UIEA2025050500579

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2025
- Submitted: May 5, 2025
- Operation: Air carrier
- Aircraft: [N263SG](https://openairdocs.org/aircraft/N263SG), registered now
- Make and model: Boeing 747481
- Aircraft serial: 29263
- Aircraft time: 53,864 hours, 6,922 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Beam
- 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/UIEA2025050500579

## Discrepancy

CORROSION - BEAM, L/H WING OUTBD L/E CAVITY LOWER PNL SUPPORT BEAM INNER FACE, AT OLES 1380 AND OLES 1413.(<P>1. BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02-0G-0 REV: 123. 2. PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO: 0477877. 3. MEASURED REWORK AREA OLES 1380 DEPTH(X) = 0.001", LENGTH = 0.6", WIDTH = 0.5", OLES 14134 DEPTH(X) = 0.003" LENGTH = 0.7", WIDTH = 0.5". IT WAS ALLOWABLE IAW SRM 57-41-13-1A1, DETAIL V REV 123. 4. APPLY PROTECTIVE COATING AT REWORK AREA IAW SRM 51-20-01-0G-0, REV 123. 5. CONDITION CHECK NORMAL AND JOB COMPLETED.</P>)

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