# SDR CALA2025110210811

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2025
- Submitted: November 3, 2025
- Operation: Air carrier
- Aircraft: [N75436](https://openairdocs.org/aircraft/N75436), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 33531
- Aircraft time: 50,988 hours, 18,233 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Part number: 116A4410
- Condition: Cracked
- Location: Zone 500
- 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/CALA2025110210811

## Discrepancy

INSPECTING THE FASTENER HOLES ON LEFT WING INBD L/E, UPPER SPAR ATTACH, ON N/R 5000-0108, EA 5720-02922,  FOUND 2 EXISTING HOLES OF 0.250" DIAMETER WITH CRACKS IN SKIN ONLY.  ACCOMPLISHED REPAIR OF LTT WING INBD LEADING EDGE SKIN IAW SRM 57-41-01-2R-8.

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