What was found
DURING HEAVY MAINTENANCE CHECK, CORROSION WAS FOUND OUT OF LIMITS AT MAIN CABIN L2 DOOR FRAME STA 1070 STRINGER 13L. REMOVED CORROSION IAW B727 511006. FABRICATED REPAIR ANGLE FROM BAC14902831. TREATED AND PRIMED IAW B727 SRM 511002, MM 512002, INSTALLED.