# SDR UIEA2026041500193

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2026
- Submitted: May 27, 2026
- Operation: Air carrier
- Aircraft: [N477MC](https://openairdocs.org/aircraft/N477MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29255
- Aircraft time: 108,821 hours, 19,065 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Zone 200
- 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/UIEA2026041500193

## Discrepancy

M/D STA 1241 FWD STR 17L - STR 18L INT SKIN FOUND CORRODED.(<P>CORROSION AREA REMOVED AS PER SRM 51-10-02 AND REPROTECTED AS PER SRM 51-20-01, REWORK AREA MEASURED, ORG: 0.220" L: 9" X W: 2" X D: 0.027", WITHIN SRM 53-00-01-1A-1 ALLOWABLE DAMAGE 1 FTG 101 LIMITS. NO FURTHER DEFECTS NOTED.</P>)

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