RAF East Kirkby served also as the headquarters of No 5/5 (Bomber) Group RAF in command of satellite stations at RAF Strubby, RAF Spilsby, RAF Hemswell and RAF Manby.
On 17 April 1945, near the end of the Second World War, a 57 Squadron Lancaster was being loaded with bombs when a fully armed 1,000 lb bomb was unintentionally dropped onto the tarmac.