Used to handle Air Jamaica 340's and the pins they supplied joined with steel wire were a steering bypass disconnect pin and the nose leg downlock pin. We had to install both on arrival, and as they were joined with steel wire you had to remove both to show the crew you have removed them after pushback.
On our own a/c 747, 330, 340, 777 we only install the bypass pin.
p.s perrin stop shouting!
