I don't agree either with the asessment that the "YS-11" is alive and well in the Philippines. When I was at Clark recently, there is a Japan Transocean YS-11 that is pristine, untouched, and gathering dust--hasn't moved since it came over from Okinawa in 1999. It's sitting on the tarmac waiting for a buyer, and it will continue to sit for a long while.
This aircraft has numerous moving parts and is a maintenance hog. The Philippines--with its economic problems--makes for a difficult operating environment unless you have numerous airframes available for canibalization. Asian Spirit (when it has the money to operate) relies on its LET-410s (which also have issues).
I rode in a Southwest Airlines YS-11 from Naha to Kume-Jima in 1992 with my girlfriend. It was a great spacious turbo-prop. Open overhead racks, cute little Okinawan Flight attendants (who spoke skoshi engrish), nice drink service--it was like going back in time 30 years. They even played tropical music when the plane landed in Kume. It was a lot of fun.
Unfortunately, the YS-11 disappeared from the Ryukus in 1999. Japan TransOcean (formerly Southwest) replaced the routes with Ryuku Air Commuter Dash-8s.
Nowadays, you can see the YS-11 in the northern Ryukus (Yoron and Okinerabu). They are operated by Japan Air Commuter throughout the Kagoshima prefecture. The flight attendants are hotties too, they all wear dark blue uniforms with these classy Bulgari scarves.