COMMENDED BULLETIN MOS 25-JUL-2011 HRS/MSC - ENC SB 72-0850 RI NO.1 ENGINE - ENGINE - GENERAL (72-00-00) - CFMS6-7B ENGINE CONVERSION TO CFM56-7627E/F. SERVICE RECOMMENDED BULLETIN MOS 25-JUL-2011 HRS/MSC - ENC SB 72-0852 NO. I ENGINE - ENGINE - LPT ROTOR/STATOR ASSEMBLY (72-54-00) - INTRODUCTION OF