# SDR IPXA2026041811914

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2026
- Submitted: April 20, 2026
- Operation: Air carrier
- Aircraft: [N575UP](https://openairdocs.org/aircraft/N575UP), registered now
- Make and model: Boeing 747-44AF
- Registry model: [Boeing 747-44AF](https://openairdocs.org/model/boeing-747-44af) (OpenAirDocs)
- Aircraft serial: 35664
- Aircraft time: 63,822 hours, 10,023 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Part number: 113U101120
- Condition: Cracked
- Location: Zone 600
- 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/IPXA2026041811914

## Discrepancy

RIGHT WING INBOARD T/E UPPER FIXED PANEL SKIN CRACK, WBL 235.2.   I.A.W. 747-400F SRM 57-51-01-2R-1 REFER TO SRM 51-70-07-0G-0 REV. 106 PERFORM REPAIR AS BELOW STEP: 1.1 REMOVE THE CRACK MATERIALS AND CLEAN. BOND THE REPAIR PLIES WITH FILM ADHESIVE CURED AT 260°F FOR 130 MINUTES WITH A MINIMUM VACUUM OF 22 IN/HG.  INSTALLED FASTENERS OF R/H WING INBD T/E UPPER FIXED PANEL WBL 235.2  I.A.W SRM 51-40-02-0G REV.106 AND BOEING DWG: 113U1011 SHEET 22 REV.A.

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