In a previous article, Mxsmanic said:
I was reading about Twin Otters in Wikipedia, and I see that production
stopped in 1988, but the article doesn't explain why. The airplane looks like
it was (and is) pretty popular, so why did the company stop making them?

Boeing bought de Havilland Canada in order to get into the intercity
commuting market. They weren't interested in the STOL market at all, so
they destroyed the production jigs for the Twin Otter and Dash 7 almost as
soon as they took possession. My father, who worked for DHC for 30 years,
calls the time when Boeing owned the as "the dark time".

On the good side, however, Viking Air (http://www.vikingair.com/) now owns
the production rights for all DHC aircraft from the Chipmunk up to the
Dash 7, and have started to produce Beavers again and Twin Otters again.

--
Paul Tomblin http://blog.xcski.com/
Quality Control, n.:
The process of testing one out of every 1,000 units coming off
a production line to make sure that at least one out of 100 works.