Guest star Jerry Douglas' fifth and final appearance on Barnaby Jones.
The background music in the final fight scene uses the melody from the beginning of The Streets of San Francisco theme song.
At the end of this episode a setup shot of Barnaby's office is used that is not the office that is the security Bank building on Colorado Boulevard in Pasadena which is actually Barnaby's office
When JR first arrives at the country club to interview one of the suspicious pilots, he pulls his car in to a parking spot and straddles the line taking up two spots. He also does not feed the meter. Come on JR.