The Crown Prosecution Service is to review the death of a Red Arrows pilot who died after ejecting from his cockpit while on the ground in Lincolnshire in 2011.
Lincolnshire Police confirmed they have handed over the file concerning the death of 35-year-old Flt Lt Sean Cunningham.
The South African-born pilot died later in hospital after the parachute on the ejection seat failed to deploy at RAF Scampton.
The RAF temporarily grounded all non-essential flying of all Hawk T1 aircraft fitted with the Mk10 Martin Baker-built ejection seat "as a precaution".
However flights later resumed with the RAF saying that it had "no remaining safety concerns".
A Lincolnshire Police spokesman said: "A file has been submitted for consideration by the CPS and as soon as we're in a position to update that, we will.
We are not speculating on the matter of any possible offences."
The police are expecting a response from the CPS by the end of the month on whether any criminal charges should be brought in relation to the incident.
An MoD spokesman said: "We are aware that a referral has been made to the CPS in relation to the civil police investigation into this incident.
"It is not appropriate for the MoD to comment on such matters. Our thoughts remain with the family and friends of Flt Lt Sean Cunningham."
The Red Arrows lost two pilots in 2011, after pilot Flight Lieutenant Jon Egging, 33, from Rutland, was killed when his Hawk aircraft came down after performing at an air show near Bournemouth airport in Dorset.
An inquest later heard the likely cause of the crash was that he lost consciousness due to the G-Force.