Piper PA-23-250 Aztec.
In PDF-format as a booklet.
From "cold" - Pre Start - Startup - Before Taxi - Taxi - Before Takeoff - Takeoff - Climb Out - Cruise - Descent - Approach - Landing - Taxi To Ramp - Shutdown - Securing Aircraft - to "cold". Based on the "Piper PA-23-250 Aztec" aircraft and panel by Fred Choate.
Freeware by Werner Schott, Switzerland