# SDR RYNA200912180026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2009
- Submitted: December 19, 2009
- Operation: Air carrier
- Aircraft: [N526NA](https://openairdocs.org/aircraft/N526NA), registered now
- Make and model: Boeing 757236
- Aircraft serial: 24794
- Aircraft time: 57,466 hours, 21,184 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/RYNA200912180026

## Discrepancy

DURING INSPECTION OF FLOORBEAMS AT STA 345 CORROSION WAS FOUND AT LBL 53.00 TO RBL 4.25.  REVIEW OF FINDINGS FOUND DAMAGE OUTSIDE NORMAL SRM LIMITS.  PERFORMED PERMANENT REPAIRS PER RYAN EO RN757-53-09 AND COTNEY AEROSPACE ENGINEERING EA EAA168-1.  CUT AND REMOVED AND DAMAGED FLOORBEAM UPPER FLANGE FABRICATED AND INSTALLED REPAIR PARTS.

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