The fact that these turboprops have a G100 fitted probably reflects the last time any of them had money spent upgrading the avionics.
What work were they doing in 1991-93 and what equipment is used on that work now? I bet that they were good for that time and have been replaced with aircraft that are good now.
All those nice Chieftains from the 1980's became ****box Bankrun machines in the 1990's, some have continued to deteriorate (saw TWB last week...
) and others have been given a birthday
Metros are just following a parallel route, over time.
