These kind of incidents are why most commercial-use three/four engine planes usually had flight engineers. The DC-3 and DC-4 were exceptions; the Boeing 307 and

These kind of incidents are why most commercial-use three/four engine planes usually had flight engineers. The DC-3 and DC-4 were exceptions; the Boeing 307 and 377, DC-6, DC-7, and Constellation reciprocating engine models all required engineers. Likewise many early three and four engined jets also were flown with engineers. See: Boeing 707, 727, early 747, DC-8, DC-10, L-1011.