# SDR SWIA202266898

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2022
- Submitted: November 15, 2022
- Operation: Air carrier
- Aircraft: [N916SW](https://openairdocs.org/aircraft/N916SW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7634
- Aircraft time: 46,611 hours, 39,677 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Bs 409 Lbl 9
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA202266898

## Discrepancy

*MULTIPLE SPOTS OF CORROSION NOTED ON FLOOR BEAM CAP AT LBL9  BETWEEN FS409.00-FS409.00+118 (MARKED)     (C-CHECK RO 11/12/2022)     BLENDED OUT CORROSION FROM THE FLOOR BEAM CAP AT LBL9 BETWEEN FS409.00-FS409.00+118. ORIGINAL MATERIAL THICKNESS OF FLOOR BEAM FLANGE 0.050", REF CRJ 200 SRM 51-31-59 FIG 3 PAGE 21, REMAINING THICKNESS AFTER BLENDED OUT 0.028" MATERIAL LOSS 0.022", ALLOWABLE MATERIAL LOSS 0.020" FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED FLOOR BEAM REF REO 601R-53-31-1242, REV. --, DATE: 2022-09-27. COMPLIED WITH TASK CARD 51-900-1003-SKY

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