# SDR UIEA2026081700770

- 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: 123,398 hours, 21,317 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Structure
- Condition: Corroded
- 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/UIEA2026081700770

## Discrepancy

AFT CARGO, BS 1700, S41L, FOUND CORRODED.   AREA REPAIRED IAW SRM 51-10-02 AND SRM 51-20-01 AND WITHIN SRM 53-00-03 ALLOWABLE DAMAGE 1 FIG 101 LIMITS, REV 107.  NO FURTHER DEFECTS NOTED.

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