# SDR UIEA2016031700175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2016
- Submitted: March 21, 2016
- Operation: Air carrier
- Aircraft: [N477MC](https://openairdocs.org/aircraft/N477MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29255
- Aircraft time: 70,777 hours, 12,695 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Fuselage
- 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/UIEA2016031700175

## Discrepancy

FOUND MAIN DECK FLOORBEAM CORROSION AT STATION 2140, LBL 75.  PERFORMED FLOORBEAM REPAIR IAW EI NR T2016A53M-509 REV 1 & SRM 53-00-51 REPAIR 3 REV 76.  JOB COMPLETED & CONDITION NORMAL.

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