Passenger who diagnoses food poisoning and guides Ted to take control of the aircraft.
Rumack supports Ted's transition from passenger to emergency pilot.
Dr. Rumack helps convince Ted to take control of the aircraft after the crew becomes incapacitated.
They perform complementary roles in organizing the response to the incapacitated crew.
Elaine contacts the tower while Dr. Rumack identifies the food poisoning and helps persuade Ted to act.
Their distinct actions contribute to the wider emergency response, though they work from separate locations.
Rumack diagnoses the onboard emergency while Steve coordinates assistance and landing support from the tower.
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Related entry on Wikidata (Q113623979), public domain (CC0).