Incident: Frontier A320 at Las Vegas on Nov 30th 2018, engine doors separated
A Frontier Airlines Airbus A320-200, registration N227FR performing flight F9-260 from Las Vegas,NV to Tampa,FL (USA) with 166 people on board, was climbing out of Las Vegas' runway 26R after being handed off to departure, when the crew reported cabin crew reported they got some problem with one of their engines (CFM56), flight attendants saying there was some fire. Departure responded tower just observed the right hand engine cowl was open. The crew declared emergency and requested to return to Las Vegas. The next departure on runway 26R reported there was some large foreign object debris (FOD) on the runway. The A320 landed safely back on Las Vegas' runway 26L about 15 minutes after departure.
The airline reported the engine cowling came loose and separated from the aircraft.
Passenger photo of the engine in flight
https://avherald.com/h?article=4c0f5756&opt=0