# SDR UIEA2025081801129

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2025
- Submitted: August 19, 2025
- Operation: Air carrier
- Aircraft: [N438GT](https://openairdocs.org/aircraft/N438GT), registered now
- Make and model: Boeing 747409F
- Aircraft serial: 30766
- Aircraft time: 92,759 hours, 17,063 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Zone 200
- 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/UIEA2025081801129

## Discrepancy

MAIN DECK COMPT AFTER ADDITION FLOOR PANELS OPEN UP FOR REPAIR LH STA 988 LBL 77 TO 90 FLOOR BEAM UPPER CHORD FOUND CORROSION(<P>MAIN DECK COMPT LH STA 988 LBL 77 TO 90 DAMAGED FLOOR BEAM UPPER CHORD REPAIRED, COMPLIED AS PER B747-400F SRM 53-00-51 REPAIR 3 REV 104. PN 65B38049-13. NO FURTHER DEFECTS NOTED</P>)

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