A Pilot who hitched a ride in cockpit saved doomed Lion Air Boeing 737 Max day before it crashed. As the Lion Air crew fought to control their diving Boeing 737

A Pilot who hitched a ride in cockpit saved doomed Lion Air Boeing 737 Max day before it crashed. As the Lion Air crew fought to control their diving Boeing 737 Max 8, they got help from an unexpected source: an off-duty pilot who happened to be riding in the cockpit. That extra pilot, who was seated in the cockpit jumpseat, correctly diagnosed the problem and told the crew how to disable a malfunctioning flight-control system and save the plane, two people familiar with Indonesia’s investigation told Bloomberg. Why wasn't this information passed on to all Lion Air pilots?