A Qantas flight made an emergency landing in Sydney due to a suspected engine failure on a Boeing 737

Qantas flight QF520 (not pictured) was headed to Brisbane but had to make an emergency landing in Sydney after it experienced a "contained engine failure," Qantas said on Friday local time.

James D. Morgan via Getty Images

• Qantas flight QF520 had to make an emergency landing in Sydney after a suspected engine failure.
• The plane was a Boeing 737-800, per the flight tracking websites Flightradar24 and FlightAware.
• As of June 30, the Qantas Group had 347 aircraft, 75 of which were Boeing 737-800 planes.