And there was the infamous EAL L-1011 triple engine failure due to inporperly assembled "O" rings fitted during a routine maint check...they were preparing to ditch just short of MIA when they got the first one they shut down re-lit to barely make it across the airport boundry...
This was a training flight with the LHS Captain doing OE with the Training Capt in the RHS...(1983 I believe)