The emergency in midair.
The passenger jet
taking off from the US,
the pilots and the entire crew
suddenly falling ill.
The pilot then declaring
a medical emergency.
Surrounded by emergency vehicles,
the world's largest passenger plane.
Its entire crew ill.
Exactly why? Still a mystery tonight.
It happened two and a half hours
after takeoff from San Francisco.
Toxic fumes, toxic gas type fumes.
How many passengers are affected?
Eleven crew members that were affected
by the situation and a few passengers.
Crew members actually passed out
during the flight?
One passenger is telling us that
he was told by a flight attendant
that three members of the crew
did pass out.