REVISE WRENCHING ELEMENT RUNOUT CALLOUT (RELOCATE FROM WRENCH FLATS TO POINTS), CORRECT DIAMETER OF LIGHTENING HOLE (RESTORE ORIGINAL VALUE), REVISE LIGHTENING HOLE CONFIGURATION (REVISE SECTION VIEW) TO ALLOW OPTIONAL SHAPE AT BOTTOM OF HOLE. DELETE RADIUS AT TRANSITION OF WRENCH FLATS AND BASE FLANGE, UPDATE REFERENCES.