#327
With PT6 engines, in case of suspected engine problems, both power levers stay or go to TOGA [or appropriate] power.
Why would "one" throttle be retarded in an ATR?
Because it's not a PT6
. The ATR is a very deifferent beast compared to most TP in its operation.
Also be aware it's standard ATR procedure (right or wrong) that PF manipulates the PL during the memo items. From there the PNF takes over and does the CL and Bleed.