# SDR UIEA2023061600645

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 21, 2023
- Submitted: June 22, 2023
- Operation: Air carrier
- Aircraft: [N406KZ](https://openairdocs.org/aircraft/N406KZ), registered now
- Make and model: Boeing 747-4KZF
- Registry model: [Boeing 747-4KZF](https://openairdocs.org/model/boeing-747-4kzf) (OpenAirDocs)
- Aircraft serial: 36133
- Aircraft time: 52,694 hours, 10,132 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Longeron
- Part number: 65B15034U26
- Part serial: NSN
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2023061600645

## Discrepancy

1EA CRACK WAS FOUND RH STA 1480 LONGERON EXTENSION FTG RADIUS AREA APPROX 3/8"(<P>FUS STA 1480 RH STR 32R TO STR 33R LONGERON EXTENSION FTG REPLACED AND INSTALLED IAW EO 4453A818 PART 4 . NO FURTHER DEFECTS NOTED</P>)

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