Originally Posted by
megan
It might be originally, but then there is an STC.
FYI: there were several L-1/C30P STCs but I think only one or two are still procurable. Bell also has/had a bulletin that upgrades an L-1 (and L-3) to L-4 performance which they call a L-1+ and L-3+ with the L-1 getting a C30. And just for some trivia there was also a twin-engine upgrade for the L-1 airframe via an STC or factory new called the GeminiST and Bell 206LT respectively.