jesus bolts

The "jesus bolts" are the small, high-tensile bolts that attach the rotor pitch control push rods to the swash plateon a helicopter.

If one of these bolts fails, then one of the 'copter's rotors will be decoupled from the cyclic/collective pitch control, which is generally thought of as a Bad Thing; they are so called because if you've led a good life, afther the failure Jesus is the next person you meet.

See also zero survivability incident