What was found
DURING HEAVY MAINTENANCE, AEROMAN REPORTED CORROSION DAMAGE FOUND ON THE UPPER FLANGE ON THE FR16 LH CROSS BEAM AT THE FWD FUSELAGE. SEE REF /1/ EA FOR MORE DETAILS. THE DAMAGE WAS REMOVED BY BLEND OUT PER E190 SRM 51-10-03 AND REMAINING THICKNESSES WERE MEASURED. (1) MRT REWORKED AREA 1= 0.120 IN, % REMOVED MATERIAL= 24.05% (2) MRT REWORKED AREA 2= 0.070 IN, % REMOVED MATERIAL= 40.68% (3) MRT REWORKED AREA 3= 0.155 IN, % REMOVED MATERIAL= 1.89%. AEROMAN REPORTED REMAINING THICKNESSES TO EMBRAER FOR A REPAIR DISPOSITION AND EMBRAER PROVIDED REF /2/ ETD WITH REPAIR INSTRUCTIONS TO ACCOMPLISH A CUTOUT & FABRICATE REPAIR PARTS PER REF /3/ SRM REPAIR & INSTALL AN L ANGLE, A REPAIR DOUBLER AND SPECIALLY FABRICATED REINFORCEMENT (PN 170-05323-005). THIS REPAIR IS APPROVED PER REF /2/ ETD & REF /4/ ANAC FORM AS PERMANENT WITHOUT POST REPAIR INSPECTION. THIS EC E19-678-01 ACCOMPLISHES THE PERMANENT REPAIR PER THE REF /1/ EA AND COMPLIES WITH REF /2/ ETD WITHOUT DEVIATION. THIS PERMANENT, CATEGORY A, REPAIR HAS BEEN APPROVED VIA REF /2/ ETD AND IS CLASSIFIED AS MAJOR.