I think it went silent (for the final time) in or around November 2022.It does seem longer. It had had a number of outages prior to then, one lasting several months IIRC.

AFAIK, Spirit didn't own the transmitter, but leased the service from the company that ran the site. "I think" any serious issues required an engineer to go over from the UK.

There were 3 transmitters on site at one stage. The original DX25(x2) and a newer TRAM 50.
They were using the TRAM for a while employing Dynamic Carrier Control.

Again "I think" there may even been a 4th transmitter there although I'm open to correction as I can no longer find the website that I saw the picture on.