What was found
NR 2 INBOARD REVERSER AT 7:00 POS FRAME IS CRACKED IN HALF. AFT END OF CASCADE VANES ATTACH TO FRAME. [5-1-07] REPLACED FRAME DURING HMV. FRAME HAS HISTORY IN THE INDUSTRY OF CRACKING, SERVICE BULLETIN IAE V2500-NAC-78-0209 ADDRESSES PART OF THE ISSUE . THE ROOT CAUSE IS VIBRATION INDUCED FATIQUE DUE TO LOOSE LOWER AND UPPER ATTACHMENT POINTS. A THRUST REVERSER HEALTH CHECK TO CHECK THE SUPPORT BUSHINGS EVERY CCK IS BEING INSTITUTED. SERVICE BULLETIN 78-0209 IS ALSO INCORPORATED INTO THE HEALTH CHECK.