The airline will be investigated over the incident on June 23rd which saw the aircraft reportedly dip at a 60-degree angle, throwing bags and belonging around the cabin after it was hit by turbulence while landing at Spain's Reus airport.
Irish daily The Journal at the time quoted witnesses as saying passengers hit the ceiling when they were "catapulted from their seats".
According to a new report from Spain's civil aviation accident commission (CIAIAC), five passengers were injured, one of them seriously, when the Ryanair plane was landing at Catalonia's Reus airport.
This version of events differs from that of the airline, which argues none of the passengers were seriously injured, Spain's La Vanguardia newspaper reported on Monday.
Ryanair have now said they will work together with the CIAIAC during the investigation.
At the time of the event, Ryanair told The Local it was unable to confirm the health status of injured passengers on privacy grounds.