# SDR UIEA2025060300720

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 11, 2025
- Submitted: June 13, 2025
- Operation: Air carrier
- Aircraft: [N499MC](https://openairdocs.org/aircraft/N499MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29260
- Aircraft time: 101,034 hours, 17,226 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- Part number: 65B15034U24
- Condition: Cracked
- Location: Zone 100
- 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/UIEA2025060300720

## Discrepancy

1 EA CRACK WAS FOUND ON RH BS 1480 LONGERON EXTENSION FITTING RADIUS AREA.(<P>LONGERON EXTENSION FITTING MOD CARRIED OUT AS PER ATLAS AIR EO NO: 4453A818 REV 20 PART 8. NO FURTHER DEFECTS NOTED.</P>)

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