When Jenny is taxiing the plane after landing, the cowl is open, yet when Steve comes to get Jennie out before the plane explodes, the cowl is closed.
The first two aerial shots of the stolen plane show it sitting just outside the row of three large buildings, yet in the closer shot of when Steve dives his plane down for a closer look, the stolen plane is shown sitting between two of the buildings.
The plane at the beginning says US Air Force and has tail number N3HH. Military aircraft do not have "N" numbers as identification. For example, the pair of Air Force One's tail numbers, which there are two identical planes save the tail number, as of 2020 are 28000 and 29000.
The switch on the electronic gadget that is used to remotely activate the plane's cloaking device is not labelled as such; it just has "generic" wave-tester/signal-generator-type markings, and the remote gadget's surrounding controls have oscilloscope-type labels, too; obviously not for a cloaking device, either.
When Steve is retrieving the downed plane's flight recorder, bionic sounds are heard even when he is not forcing mangled wreckage out of his way or lifting anything heavy.
Jenny claims that the storage room is "strong enough to hold King Kong", yet the door is secured with just a single chintzy sliding-bolt latch that even a normal man could likely break.