UPDATE THREAD SPECIFICATION TO AS8879, ADD OPTIONAL SHAPE FOR BOTTOM OF LIGHTENING HOLE, ADD TERTIARY DATUM FOR POSITION OF SAFETY WIRE HOLE, RELOCATE RUNOUT REQUIREMENT ON BOLT HEAD TO ACROSS POINTS, DELETE RADIUS REQUIREMENT AT TRANSITION FROM WRENCH PAD TO BASE FLANGE, ADD MINIMUM SENSITIVITY LEVEL TO DRAWING NOTE 5, ADD DATUM NOTE 1 FOR SHORT BOLT LENGTHS, RELOCATE DATUM W AND GENERAL EDITORIAL UPDATE.