I might be wrong but...the fixed wing side has been on the decline...there was a photo on the front page of the Post Courier about 2 (?) months ago of their last 3 Bandits being prepared for shipping to South America somewhere. The article also said that they were concentrating on the rotary wing side.
Don't know if they still have the Baron and Twotter.
There used to be legendary parties at the compound in Boroko.