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An aircraft that has scheduled trips but is precariously close to breaking and not able to complete trips.
Scheduler: "Hey, Mechanic. Is 431HF going to make it's trips in 2 hours?"

Mechanic: "It's shaky jake brother, shaky jake."

Scheduler: "dam, so you're telling me it's not broke or fixed right now."
by Not A Mechanic July 23, 2011
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