2-63-00) - REPLACEMENT OF BALL BEARING 301-480-320-0 IN A SUSPECT LOT. SERVICE BULLETIN MOS 26-FEB-2009 HRSAISC - ENC 13-FEB-2009 SB 72-0732 NO.2 ENGINE - ENGINE - LPT FRAME ASSEMBLY (72-56-00) - INSPECTION OF TURBINE REAR FRAME ON SAC ENGINES. SERVICE BULLETIN MOS 02-JUN-2009 HRS1MSC ENC 19000 (s) SB 72