What was found
DURING AN E9 INSPECTION, FOUND CORROSION ON FUSELAGE LOWER SKIN AT FRAME 21 (FS 6842.6). AT 7 O'CLOCK POSITION, AIRCRAFT HAD A PREVIOUS REPAIR ON FRAME 21 FOR CORROSION AT THE 6 O'CLOCK POSITION. REMOVED PREVIOUS REPAIR DOUBLER, CUT OUT NEW DAMAGED AREA OF FUSELAGE, FABRICATED FILLER AND DOUBLER AS PER SRM 53-00-01.