212 man;
You're right. The CAA Inspector wasn't on board, a freelance IRE (Spotty Muldoon) was on board, in the P2 seat, the operation's chief pilot was in the back. In the Irish AAIB report the final words on the CVR were Spotty saying "Gentlemen, I'm really not happy about this" followed by an AVAD 100' warning that was cut short by the impact.
The next morning when the house keeper went to check the pilots' beds she found they hadn't been slept in, at that point the search started.
The let down they were using had been created by the crew, who allowed the aircraft deliberately off track that night to compensate for wind and earlier high ground.
JJ Smith hit the mountains very close to the Haughey Air crash site.
SND