As Dr. Hansen works at Airwolf's computer station, there's a calculator and a notebook sitting in front of her. When the shot changes just before she's nearly electrocuted, the calculator and notepad are missing.
Hawke leans against the jeep, as Dom works on it in the lair. When they hear Dr. Hansen scream as she's nearly electrocuted inside Airwolf, Hawke straightens up, no longer leaning on the jeep. When the shot changes, he's leaning on the jeep again.
In the pilot episode Shadow of the Hawke (1984), Dr. Moffet's name was spelled with one t; in this episode, it is spelled with two t's.
When Hawke asks Marella to clarify "several", she answers that there were six targets. The map earlier showed at least eight targets.
When Hawke, Dom, and Dr. Hansen take Airwolf for a test flight and it finds the Cessna, the Cessna is first shown painted blue on white; later it is shown as red on white.
During the first few minutes, Airwolf's cockpit instrumentation is visible and all the gauges read zero even though they are in flight.
The second Cessna (red/white) image was reversed and the N-number partially obscured. All that was seen was a reversed 6L.
When Archangel's secret message clicks off Dr. Hansen's screen, there is a reflection of someone standing in light colored long sleeves with a pale collar.
On two occasions flying over Alaska, snow covered desert can be seen.