What was found
CORROSION FOUND ON FLOOR STRUCTURE COMMON TO PASSENGER DOOR SURROUND STRUCTURE AT FS 333.00 TO FS 349.00 LBL 36 TO LBL 40. ***AIRCRAFTY REMOVED FROM SERVICE*** BLENDED CORROSION ON BRACKET ASSY 601R31527-149 AT FS 333.00 AT 4 EACH LOCATIONS. (P1) 2.100L X 1.200W X .008D (P2) 2.5L X 1.100W X .008D (P3) 1.400L X .800W X .005D (P4) 1.400L X .400W X .004D. (P1) AND (P2) FOUND TO BE OUT OF LIMITS AND (P3) AND (P4) WITHIN ALLOWABLE LIMITS IAW CRJ200 SRM 53-00-00 REV 38. REMOVED BRACKET ASSEMBLY P/N: 601R31527-149 COMMON TO FS 333.00 AND PASSENGER DOOR LOWER SURROUND STRUCTURE. INSTALLED BRACKET ASSEMBLY 601R31527-217 (PART NUMBER INTERCHANGEABLE WITH P/N: 601R31527-149) AT FS 333.00 AND PASSENGER DOOR LOWER SURROUND STRUCTURE IAW CRJ200 SRM 51-42-06 REV 38. CLEANED FLOOR STRUCTURE COMMON TO PASSENGER DOOR SURROUND AND FS 333.00 TO FS 349.00 AND LBL 36 TO LBL 40 IAW CRJ200 SRM 51-26-00 REV 38. NO FURTHER CORROSION FOUND. RESTORED PROTECTIVE FINISH. ALL WORK PERFORMED AT AERSALE CRS4AER685B ON W/O #003472 AND CARD #20184.