A shuttle apparatus for fall protection, the shuttle apparatus comprising: a shuttle housing configured for dynamic engagement relative to a guide member such that the shuttle housing is secured relative to the guide member and movable along a length of the guide member; a first brake assembly configured to be activated during a fall instance, wherein activation of the first brake assembly causes a first braking portion to engage the guide member; and a secondary brake assembly configured independent from the first brake assembly , the secondary brake assembly comprising: a secondary brake pawl configured to pivotably rotate about a secondary brake pawl pivot pin between a disengaged position and an activated position, the secondary brake pawl configured to rotate toward the activated position during the fall instance; and a secondary brake lock arm configured to freely rotate independent of the shuttle housing such that the shuttle housing being arranged in an angled configuration relative to a vertical axis causes the secondary brake lock arm to be rotated relative to the shuttle housing to an engaged position, wherein the secondary brake lock arm in the engaged position is configured to obstruct a rotation of the secondary brake pawl to prevent the secondary brake assembly from being activated during the fall instance. a shuttle housing configured for dynamic engagement relative to a guide member such that the shuttle housing is secured relative to the guide member and movable along a length of the guide member; a first brake assembly configured to be activated during a fall instance, wherein activation of the first brake assembly causes a first braking portion to engage the guide member; and a secondary brake assembly configured independent from the first brake assembly , the secondary brake assembly comprising: a secondary brake pawl configured to pivotably rotate about a secondary brake pawl pivot pin between a disengaged position and an activated position, the secondary brake pawl configured to rotate toward the activated position during the fall instance; and a secondary brake lock arm configured to freely rotate independent of the shuttle housing such that the shuttle housing being arranged in an angled configuration relative to a vertical axis causes the secondary brake lock arm to be rotated relative to the shuttle housing to an engaged position, wherein the secondary brake lock arm in the engaged position is configured to obstruct a rotation of the secondary brake pawl to prevent the secondary brake assembly from being activated during the fall instance. a secondary brake pawl configured to pivotably rotate about a secondary brake pawl pivot pin between a disengaged position and an activated position, the secondary brake pawl configured to rotate toward the activated position during the fall instance; and a secondary brake lock arm configured to freely rotate independent of the shuttle housing such that the shuttle housing being arranged in an angled configuration relative to a vertical axis causes the secondary brake lock arm to be rotated relative to the shuttle housing to an engaged position, wherein the secondary brake lock arm in the engaged position is configured to obstruct a rotation of the secondary brake pawl to prevent the secondary brake assembly from being activated during the fall instance. <EOS>