# SDR UIEA2025021300141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2025
- Submitted: March 6, 2025
- Operation: Air carrier
- Aircraft: [N499MC](https://openairdocs.org/aircraft/N499MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29260
- Aircraft time: 100,234 hours, 17,104 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Seat Track
- 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/UIEA2025021300141

## Discrepancy

CORROSION ON SEAT TRACK/FLOOR BEAM AT RBL 11.33 AT STA 1900.(<P>REPLACED 2 SECTIONS OF SEAT TRACKS FROM PREVIOUS REPAIR STA 1610 TO STA 1766.5 TO FACTORY SPLICE AND 2ND SECTION FROM STA 1766-.5 TO STA. 1910 TO PREVIOUS REPAIR SPLICE RBL 11.33 PER B747-400F SRM 53-00-52-2R-12 REPAIR 12 REV 102. REF > HM627-20061 FOR REPAIR.  NO FURTHER DEFECTS NOTED.</P>)

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