ST RATING. SERVICE BULLETIN MOS RECOMMENDED 28-JUL-2010 SB 737-71-1634 POWER PLANT - GENERAL - CHANGE THE OPERATIONAL THRUST RATING OF CFM56-78 SACJ3 (TECH INSERTION) SUPERSEDED ENGINES FROM 7827/3 TO 7B24/3 OR 7826/3. OR FROM 7826/3 TO 7824/3 (SUPERSEDED BY SB 737-71-1634 RI). SERVICE BULLETIN