# SDR UIEA2018031500414

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2018
- Submitted: March 16, 2018
- 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: 75,184 hours, 12,577 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 860
- 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/UIEA2018031500414

## Discrepancy

CORROSION DAMAGE AT UPPER CAP OF MAIN DECK FLOORBEAM AT BS 860, BL 0.  REPAIRED IAW EI T2018A53M-936, REV 1, AND SRM 53-00-51-2R-3, REPAIR 3, REV 82.  CHECKED NORMAL.

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