What was found
LT SIDE CONNECTING ANGLE FOR THE VERTICAL STAB TO THE FUSELAGE IS CRACKED APPROX 1.5 INCH AT VERTICAL STAB STRINGER DATUM 55.62 PERCENT. HFEC IAW CRJ 700 NDTM PART 1 51-20-006 CONFIRMED AND MARKED. MAPPED FOR ENGINEERING. REMOVED FASTENERS FROM AFFECTED AREA AND COMPLIED WITH REO 670-53-84-094 NOTES 1,2. HFEC CUT LINE EDGES AND UNDERLYING STRUCTURES IAW REO 670-53-84-094 NOTE 3. NO CRACKS NOTED. FABRICATED REPAIR DOUBLER AND FILLER ANGLE AS PER REO 670-53-84-094 SHT 2 STEPS 4-7. HFEC IAW CRJ 700 NDTM PART 1 51-20-006 AT RADIUS. NO CRACKS NOTED. INSTALLED DOUBLER AND FILLER TO COMPLETE REPAIR IAW REO 670-53-84-094 AND SRM 51-25-01.