# SDR U2RA2026091000058

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2026
- Submitted: September 29, 2026
- Operation: Air carrier
- Aircraft: [N702CA](https://openairdocs.org/aircraft/N702CA), registered now
- Make and model: Boeing 747412
- Aircraft serial: 27217
- Aircraft time: 96,756 hours, 15,081 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 111U31021
- Condition: Corroded
- Location: Zone 100
- 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/U2RA2026091000058

## Discrepancy

DURING AIRCRAFT D-CHECK MAINTENANCE DISCOVERED CORROSION ON THE UPPER SKIN OF THE CENTER WING AT STA 1140, BETWEEN LBL 100 AND LBL 110. THE DAMAGE WAS REMOVED PER 747-400BCF SRM AND FOUND TO BE BEYOND PUBLISHED LIMITS.
CORROSION BLENDED OUT AND REPAIR COMPLETED PER FVCI CONTROL # 26123-2 INCLUDING SRM 57-10-01, 57-00-04

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