The plug shall disengage from the test fixture or demonstrate mechanical failure(i.e., the force applied during the test procedure peaks and drops off) when amoment of 2.0 Nm is applied to the plug in the up and down directions and amoment 3.5 Nm is applied to the plug in the left and right directions. A new plug isrequired for each of the four test directions. An example of the mechanical failurepoint and an illustration of the wrenching test fixture are shown in Figure 3-65 and