PHOTO: Shutterstock
Now playing
01:16
Pilot removed from flight after rant
PHOTO: Dr. James Yaingeluo
Now playing
01:19
Plane lands short of runway, crashes into sea
Now playing
01:03
See jet's white-knuckle landing attempt
PHOTO: courtesy larry coben
Now playing
02:16
Passenger describes being quarantined on plane
PHOTO: WZTV
Now playing
01:20
Passengers on plane possibly exposed to illness
burbank airport plane fight
PHOTO: Twitter/Nick Krause
burbank airport plane fight
Now playing
00:49
Fight erupts aboard Southwest flight
PHOTO: Shutterstock
Now playing
01:18
Scorpion stings passenger on United flight
Passenger chases plane on tarmac orig vstop dlewis_00000000.jpg
PHOTO: CC.OO. Ryanair & Lesma Handling
Passenger chases plane on tarmac orig vstop dlewis_00000000.jpg
Now playing
00:50
Passenger chases plane on tarmac
PHOTO: Courtesy Spirit Airlines
Now playing
00:50
Woman gives birth midair on Spirit flight
The engine on a Southwest Airlines plane is inspected as it sits on the runway at the Philadelphia International Airport after it made an emergency landing in Philadelphia, Tuesday, April 17, 2018. (Amanda Bourman via AP)
PHOTO: Amanda Bourman/AP
The engine on a Southwest Airlines plane is inspected as it sits on the runway at the Philadelphia International Airport after it made an emergency landing in Philadelphia, Tuesday, April 17, 2018. (Amanda Bourman via AP)
Now playing
01:07
Nurse on plane: Made every effort to save woman
(180514) -- CHENGDU, May 14, 2018 (Xinhua) -- Flight 3U8633, operated by Sichuan Airlines, prepares to conduct emergency landing after a mechanical failure in Chengdu Shuangliu International Airport in Chengdu, capital of southwest China's Sichuan Province, May 14, 2018. Part of the cockpit window broke as the Airbus A319 flew over Chengdu. The plane was en route from southwest China's Chongqing Municipality to Lhasa, capital of Tibet Autonomous Region. It was forced to divert to an alternate airport in Chengdu. All passengers are safe, although the co-pilot sustained injuries to the face and waist, and another crew member was slightly hurt during the emergency landing. After the landing on Monday morning, the airline has arranged another flight to take the passengers to Lhasa. (Xinhua/Wan Bi) (ry) (Photo by Xinhua/Sipa USA)
PHOTO: Xinhua/Sipa USA
(180514) -- CHENGDU, May 14, 2018 (Xinhua) -- Flight 3U8633, operated by Sichuan Airlines, prepares to conduct emergency landing after a mechanical failure in Chengdu Shuangliu International Airport in Chengdu, capital of southwest China's Sichuan Province, May 14, 2018. Part of the cockpit window broke as the Airbus A319 flew over Chengdu. The plane was en route from southwest China's Chongqing Municipality to Lhasa, capital of Tibet Autonomous Region. It was forced to divert to an alternate airport in Chengdu. All passengers are safe, although the co-pilot sustained injuries to the face and waist, and another crew member was slightly hurt during the emergency landing. After the landing on Monday morning, the airline has arranged another flight to take the passengers to Lhasa. (Xinhua/Wan Bi) (ry) (Photo by Xinhua/Sipa USA)
Now playing
00:51
Co-pilot sucked halfway out of plane
A JetBlue flight from San Juan to Tampa was diverted when the outer layer of the plane's windshield shattered.
PHOTO: WFTS
A JetBlue flight from San Juan to Tampa was diverted when the outer layer of the plane's windshield shattered.
Now playing
00:42
JetBlue windshield shatters mid-flight
PHOTO: Air Canada
Now playing
01:15
Plane nearly landed on a crowded taxiway
PHOTO: KYW
Now playing
01:32
Southwest plane makes emergency landing
australia bali flight airasia seven network pkg_00013614.jpg
australia bali flight airasia seven network pkg_00013614.jpg
Now playing
01:27
Inside AirAsia flight as it dropped 20,000 feet
PHOTO: Marty Martinez/Storyful
Now playing
01:33
Watch passengers inside Southwest plane

Story highlights

Passengers said on social media that they felt the pilot might be unstable

United arranged for new pilot; flight was delayed about 2 hours, airline says

(CNN) —  

A flight out of Austin, Texas, was delayed after a pilot behaved in a way that caused passengers to believe she was mentally unstable, a United Airlines spokesman said Sunday.

The pilot, whom CNN is not naming, boarded the plane in street clothes and began speaking to passengers over the intercom, spokesman Charlie Hobart said.

Passengers on Saturday’s San Francisco-bound flight took to social media to express concerns after the pilot spoke to them about her divorce and the presidential election, among other issues.

One passenger, whose Twitter bio identified him as Randy Reiss from San Francisco, tweeted that the pilot called Hillary Clinton and President Donald Trump “a**holes” and, at one point, said that she was going “to be on Oprah.”

Some passengers said on social media that they got off the plane. Another pilot was brought in and the flight took off about two hours later, Hobart said.

Hobart said he didn’t have more details about the incident, including why the pilot was allowed on the plane in plain clothes and if anyone thought something was amiss before she boarded.

United will discuss the incident with the pilot, he said.