What was found
THIS ACFT ARRIVED ON FEBRUARY 7, 2011 FOR AN ENGINE MODULE 2/3 CHANGE. THE MECHANIC REMOVED THE O/H UNIT FROM THE SHIPPING CONTAINER AND VERIFIED THE PAPERWORK. HE THEN REMOVED THE ENGINE FROM THE ACFT TO FACILITATE THE MODULE CHANGE. ONCE THE REINSTALLATION OF THE O/H MODULE 2/3 BEGAN, THE MECHANIC NOTICED THAT THE DEFLECTOR NUT COTTER PIN WAS NOT INSTALLED. THE MECHANIC THEN REFERENCED BACK TO THE MM, WHERE IT IS ALSO ADDRESSED IN A NOTE IN THAT SAME PARAGRAPH. THE INSTALLATION OF THE MODULE 2/3 WAS STOPPED AT THAT POINT, AND THE FIELD TECH FOR MFG WAS CONTACTED FOR VERIFICATION.