# SDR A6WA202010207331

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2020
- Submitted: October 20, 2020
- Operation: Air carrier
- Aircraft: [N447AW](https://openairdocs.org/aircraft/N447AW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7812
- Aircraft time: 37,890 hours, 36,698 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 601R31145140
- Condition: Corroded
- Location: Bs 555
- 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/A6WA202010207331

## Discrepancy

LT PRESSURE FLOOR SILL PANEL AT FS 555.5 AND RBL 47 HAS CORROSION.  AIRCRAFT REMOVED FROM SERVICE.  REMOVED CORROSION ON PRESSURE FLOOR SILL PANEL AT FS 555.5 AND RBL 47, PER REO 601R-53-41-666 AND CRJ 200 SRM 51-21-06.  REWORK AREA MEASURES 0.77''L X 0.50''W.  ORIGINAL THICKNESS MEASURES 0.080'', PER REO 601R-53-41-666.  PERFORMED UT THICKNESS MEASUREMENT ON BLENDED AREA OF PRESSURE FLOOR SILL PANEL AT FS 555.5 AND RBL 47.  THICKNESS MEASURES 0.077'', REF CRJ 200 NDTM PART 4 REV 41 51-00-001 UT GAUGE S/N DBT-CT-1033 CAL DUE 02/19/21.  PERFORMED HFEC INSPECTION ON BLENDED AREA OF PRESSURE FLOOR SILL PANEL AT FS 555.5 AND RBL 47, PER REO 601R-53-41-666 AND CRJ 200 NDTM PART 1 REV 41 51-20-06, NO INDICATIONS NOTED.  EDDY CURRENT TESTER S/N 200051301 CAL DUE 01/24/21.  EVALUATED REWORKED AREA OF PRESSURE FLOOR SILL PANEL AT FS 555.5 AND RBL 47 ORIGINAL THICKNESS IS 0.080'', REMAINING THICKNESS IS 0.077'', FOUND TO BE WITHIN LIMITS PER REO 601R-53-41-666 REV C DTD 2012-11-06.

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