# SDR KCSA202510071173

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2025
- Submitted: October 7, 2025
- Operation: Air carrier
- Aircraft: [N771CK](https://openairdocs.org/aircraft/N771CK), registered now
- Make and model: Boeing 777-36NER
- Registry model: [Boeing 777-36NER](https://openairdocs.org/model/boeing-777-36ner) (OpenAirDocs)
- Aircraft serial: 32791
- Aircraft time: 67,957 hours, 12,750 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Cracked
- Location: Zone 600
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA202510071173

## Discrepancy

WHILE PERFORMING BOEING SB 777-57A0125 CRACK INDICATIONS FOUND ON FASTENER #5 R/H WING T/E UPPER SKIN

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