Revealing mistake: As Harm & Mac are returning to the US, we are told they are flying out of London Heathrow. But the stock footage of an airport used is actually London Gatwick, identified by its distinctive control tower, and not Heathrow.
Revealing mistake: When the plane approaches the aircraft carrier, they have to dump fuel, and the fuel comes out through the back. However it should be coming out on the wing tips. So they had a tank of water or something similar that they sprayed out through the back. (Confirmed by a Staff Seargent with the USMC who flew 8 years on a C130.)
Revealing mistake: The municipal court-room used for the Chief's arraignment hearing looks amazingly similar to the military court-room at JAG. Or maybe, the same architect of the Navy's court-room was retained by the District as well.
Revealing mistake: When Harm kills a poacher hunting them, they take his rifle but the ammunition he has for the rifle is shotgun shells.
Revealing mistake: The cockpit of the C130 is not correctly rebuilt. The pilots are sitting too close to each other. (Verified by a former C130 pilot with the USMC.)
Revealing mistake: When Harm talks to the young sailor about the lighter and how high the flame really was...he says "dial that up as high as it'll go"...keep your eye on his collar, and you'll see the tag on his shirt says "DAVID"...
Revealing mistake: While at Ft. Leavenworth, the show indicates that Harm is picking up Father O'Rourke from Kansas City International Airport. Having spent many years there, the buildings, etc that were shown are not KCI. Also, L-1011's did not and do not routinely fly in or out of KCI, as one L-1011 was seen flying overhead.