# SDR CALA2026080318195

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2026
- Submitted: August 3, 2026
- Operation: Air carrier
- Aircraft: [N21108](https://openairdocs.org/aircraft/N21108), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27298
- Aircraft time: 108,984 hours, 26,250 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Part number: 112N6003
- Condition: Corroded
- 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/CALA2026080318195

## Discrepancy

RIGHT WING SKIN, LOWER SURFACE UNDER PANEL 643BB FUEL TANK ACCESS DOOR CUTOUT HAS CORROSION.  REMOVED CORROSION ON WING SKIN LOWER SURFACE PANEL 643BB FUEL TANK ACCESS DOOR CUTOUT AND EVALUATED ORIGINAL THICKNESS 0.178" MA TERIAL LOSS 0.019" MAX MATERIAL LOSS ALLOWED 0.05" FOUND WITHIN LIMITS EVALAUTED AND REPAIRED IAW SRM 57-20-01-2R-5. REPAIR 5.

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