EFATO diagnostics on ATR types
The one instrument that frequently gets ignored during engine failure is the balance indicator (slip ball).Its right under the PFD.If the Plane was on AP..the rudder trim indicator would slide toward the live engine as a clue until it couldn't carry itself and disengage.5 degree bank ito the live engine highly recommended on the ATR or similar turbo prob to minimise trim drag and fly away at Vmlb0 (white bug in non icing) after climb sequence.
One good thing not to do after pulling the identified engine PL to idle is to keep pulling the CL past FTR and into SO.its your last chance to assess which IS the good engine and if you have thus far pulled the wrong engine levers to promptly correct after consultation and conformation with the other crew after properly feeling the flight path symmetry and cross checking engine and bleed data (eng bleed of the live engine will auto close to conserve power toward providing torque.Check ITT and Fuel flow readings..they can't be the same!The clues are there...it just requires composure and slow but deliberate identification...whilst mnitoring the flight path and flying the right speed by the handling pilot.Aviate.Then investigate..then communicate intentions and navigate as required by the demands of the engine failure be it via engine out SiD or visual circuit.Then communicate again to all concerned in the cabin and ATC for the Approach and landing.