Breaking the usual format of the title being a line spoken by a character, this one is the type of aircraft involved in the principle plot.
The registration number on the helicopter is NH4482, which is an invalid sequence for a US registered aircraft. The sequence would begin with the N and then contain numbers and possibly letters as a suffix. While vehicles used in productions have almost always used fictional license plates, aircraft often used an actual "N" number. The advent of HD broadcasting made numbers easier to read, and unlike vehicles, aircraft have a public database. Due to this, producers often use fictional numbers for aircraft as was done here.