Duchess 76
Flight Crew Commercial; Flight Crew Flight Instructor
Situational Awareness
Aircraft Equipment Problem Critical
Flight Crew Diverted; Flight Crew Landed As Precaution; Flight Crew Inflight Shutdown
Aircraft
I was flying with my student in [a] BE-76 for a check ride review flight. We were doing the usual flight training in [the] training area at 6000 feet; and after all maneuvers we started to do single engine operations - Single engine failure in air and restart. But after the single engine failure; when we tried to restart the left engine we were unable to restart the left engine using the appropriate methods - using [both with] accumulator and without accumulator methods as per checklist. So we landed [at a nearby airport]. When we were [on the] ground after [the] safe landing we tried to start the left engine and it started after couple of tries.
BE76 Instructor Pilot reported diverting to an alternate airport after the left engine failed to restart following an inflight shut down for training.