Unions in negotiation, in the airline business, don't crash planes into each other, and you should feel ashamed for suggesting that they would. The actual comm

Unions in negotiation, in the airline business, don't crash planes into each other, and you should feel ashamed for suggesting that they would. The actual common tactic is using a variant of work-to-rule. Normally, maintenance crews can "backfill" their bureaucracy a bit after the physical work on an aircraft is done, which means the plane is going back into service while they file the paperwork. During a protest action, instead they refuse to release the plane for service until every last bit of relevant paperwork has been filled out, signed, stamped, filed in triplicate and multiple receipts issued for it, which can involve tracking down a lot of people all over the airport to fill out and sign things. Which is technically what the procedures require, but basically never happens outside of a time when the maintenance union wants to gain leverage over the airline. If you've ever been on a flight which had minor maintenance done at the gate, and then sat for 45 minutes while they "waited on the logbook", that was likely a work-to-rule action by the union.