CB(S)/ DB(S) with C20's
Engine trend checking:
Split tq's to get testing engine doing the work, turn s/genny off and pull 86% tq.
Engine power assurance check:
IAS 60 kts, retard other engine to grd idle. Turn s/genny of test engine off, pull 95% tq (or 810 TOT), keep Nr 100%.