# SDR UIEA2026040600129

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2026
- Submitted: May 27, 2026
- Operation: Air carrier
- Aircraft: [N477MC](https://openairdocs.org/aircraft/N477MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29255
- Aircraft time: 108,821 hours, 19,065 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Support Frame
- Condition: Cracked
- Location: Zone 200
- 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/UIEA2026040600129

## Discrepancy

1EA FASTENER HOLE CRACK FOUND ON LH SUPPORT FRAME CRACK 4 O'CLOCK APPROX 0.020" IN DEPTH(<P>CRACK FASTENER HOLE REPAIRED AS PER RI-53-80-18195 REV A. NO FURTHER DEFECTS NOTED</P>)

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