# SDR 200200259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2002
- Submitted: May 10, 2002
- Operation: Air carrier
- Filed by: [Marana Aerospace Solutions Inc, repair station ERKR675D](https://openairdocs.org/faa-repair-station/ERKR675D/marana-aerospace-solutions-inc.md) (OpenAirDocs)
- Aircraft: N470EV
- Make and model: Boeing 747273C
- Aircraft serial: 20653
- Aircraft time: 84,303 hours, 18,910 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 65B10929518
- 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/200200259

## Discrepancy

CORROSION WAS FOUND ON THE BS 380 FLOORBEAM UPPER CHORD LBL 9 TO LBL 28.  THE FLOORBEAM WAS REPAIRED BY REMOVING THE DAMAGED SECTION OF UPPER CHORD AND SPLICING IN A NEW SECTION BETWEEN LBL 28 AND LBL 9.2 PER BOEING DRAWING 14100044 SHEET 4 AND ECRA 470-53-133-2.

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