# SDR IPXA2026063061139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2026
- Submitted: August 4, 2026
- Operation: Air carrier
- Aircraft: [N583UP](https://openairdocs.org/aircraft/N583UP), registered now
- Make and model: Boeing 747-4R7F
- Registry model: [Boeing 747-4R7F](https://openairdocs.org/model/boeing-747-4r7f) (OpenAirDocs)
- Aircraft serial: 25867
- Aircraft time: 138,869 hours, 23,454 cycles
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Panel
- Part number: 313U2113911
- Condition: Eroded
- Location: Zone 400
- 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/IPXA2026063061139

## Discrepancy

EROSION,  L/E, NR 3 PYLON 471B PANEL. REMOVE THE ERODED MATERIALS AND CLEAN. MEASURE THE DAMAGE AREA ( L : 3.5", W : 0.2", D : 1 PLY, AT L/E, 22" FROM INBD EDGE ). APPLY ADHESIVE TO THE REPAIR AREA, CURED AT 80 F FOR 10 HOURS. I.A.W AMM 51-24-11-477-083 REV.117, REPAINT REWORK AREA.

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