GHC aircraft have HUMS fitted to all the 139's.
If the company wasn't happy with the fleet then they would just continue to fly the 412's, which as you probably know is no fun for either crew or pax in the 40 degree plus heat of summer.
The 139's have daily inspections and crews are happy to be flying them with the AC rather than the 412's that do not.
Most crew have families. Do you really think that if they were concerned with their safety then they would be flying them!
