The footage captured by one of the Boeing 737’s pilots shows the first officer using the red and yellow faux chicken with mouth agape to push the throttle forward, The Sun reported.
He also is shown squeezing the toy to make it squeak, prompting the crew to burst out laughing as passengers boarded the flight in Birmingham, England, according to the outlet.
The co-pilot also is seen sticking his tongue out and crossing his eyes — and one snap shows rosary beads strung over the two engine throttles.
The Irish budget airline’s brass have launched an investigation into the “unprofessional” cockpit actions, The Sun reported.
“These pictures and video show crew on the ground in a parked aircraft with the engines shut down. While the images are unprofessional, the actions in them posed no risk and safety was never compromised,” a Ryanair rep told the outlet.
“We encourage our crew to enjoy their work. However, we expect them to remain professional at all times and we are investigating the matter further.”
Aviation safety consultant David Gleave also said the pilots didn’t run afowl of safety considerations.
“It’s a fun video which is entertaining and de-stressing the pilots, and probably designed to be shared among their friends, but you could argue it damages the brand,” he told The Sun.
“There is no risk to the public. In the grand scheme of things, I don’t see much wrong,” Gleave added.