# SDR UIEA2024013100055

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2024
- Submitted: February 7, 2024
- Operation: Air carrier
- Aircraft: [N408MC](https://openairdocs.org/aircraft/N408MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29261
- Aircraft time: 96,869 hours, 16,297 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Frame
- Part number: UNKNOWN
- Condition: Cracked
- Location: Bs 2598 Bulkhead
- 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/UIEA2024013100055

## Discrepancy

LH BS 2598 B/HEAD INNER CHORD 1EA HOLE FOUND CRACK AT 3ND LAYER (COUNTING FROM AFT) AT 5 O'CLOCK POSITION APPROX 0.050" IN DEPTH(<P>INNER CHORD CRACK AREA REPAIRED AS PER RI-53-73-16683 REV.A. NO FURTHER DEFECTS NOTED</P>)

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