must not accomplish this SB unless they are contacted by Rolls• Royce. OPT 13 Aug 2012 I BR700-78.101512 • Improvements to NOTE: GV Engines: the Thrust Reverser Pivoting Doors Prior to TRU Serial (Left) Number 398 /I G500 & G550 Engines: Prior to TRU Serial Number 153 M700.78.101514. TM Fixed NOTE: GV Engines: Stru