What was found
THE SEAT TRACK AT LBL9.00 JUST AFT AT APPROXIMATELY FS559.00 TO FS559.00+80 HAS MULTIPLE LOCATIONS OF CORROSION. REMOVED CORROSION ON SEAT TRACK AT LBL 9.00 FROM FS559.00 TO FS559.00+80, REF. CRJ 200 SRM. ORIGINAL MATERIAL THICKNESS OF LOCATION T=0.110,? REF STANDARD MANUAL, REMAINING THICKNESS AFTER BLENDED OUT IS 0.080? MATERIAL LOSS IS 0.030? MAXIMUM ALLOWABLE LOSS IS 0.020? FOUND TO BE OUT OF LIMITS, REF. CRJ 200 SRM. REMOVED & REPLACED SEAT TRACK AT LBL9 FROM FS 559.00 TO FS 559.00+80, REF. CRJ 200 AMM.