# SDR UIEA2026082500795

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2026
- Submitted: September 1, 2026
- Operation: Air carrier
- Aircraft: [N489MC](https://openairdocs.org/aircraft/N489MC), registered now
- Make and model: Boeing 747412F
- Aircraft serial: 26553
- Aircraft time: 122,398 hours, 21,317 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead Web
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2026082500795

## Discrepancy

LT WING LG WW FWD BULKHEAD LWR INBD WEB FOUND CRACKED.  THE LT WLG WW FWD BULKHEAD LWR WEB  REPAIRED IAW RI-52-49-18450, REV A.  NO FURTHER DEFECTS NOTED.

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