UPDATE 2-SkyWest unclear on why plane passengers lost consciousness
(Adds passengers seating, FAA investigation)
NEW YORK, April 23 (Reuters) - A day after three passengers lost consciousness on a commercial plane traveling from Chicago to Hartford, Connecticut, airline officials remained unclear on what had caused the travelers to pass out.
The pilot of SkyWest Airlines flight 5622, operating as United Express, began a rapid descent of the plane after learning that a passenger had passed out from possible cabin pressure issues, said airline spokeswoman Marissa Snow.
After making an emergency landing in Buffalo, New York, medics on the ground determined that two additional passengers sitting nearby had also lost consciousness, Snow said.
The airline said the three affected passengers had been seated near one another in rows 11 and 12 in the middle of the plane.
It is not known at what point the two other passengers lost consciousness.
All passengers on the plane, including those affected and 75 other travelers, were evaluated and released after landing.
Passenger Mary Cunningham, a registered nurse, said at least two people passed out before the plane began to descend, CBS-affiliate WIVBTV reported.
Other passengers reported to local media a frightening scene as the flight made an emergency landing. Continuación...