55 Squadron RFC continued its pattern of daylight raids with an early morning attack on Deynze railway junction. They were attacked by enemy scouts and in the fighting Captain Francis McDougall Charlewood Turner and 2nd Lieutenant Reginald de Renzie Brett claimed to have destroyed one aircraft and driven down another in a vertical nose-dive with its engine full on, apparently out of control. Lieutenant Charles Bernard Waters and 2nd Lieutenant Gerald Mackie Smith succeeded in destroying one EA and one out of control, while three others were claimed driven down out of control by 2nd Lieutenant Arthur Stuart White and 2nd Lieutenant Arthur Frederick Castle; Lieutenant Alfred Gordon Whitehead and 2nd Lieutenant Harry Bell MacDonald and Lieutenant Clive Waddington Davies and 2nd Lieutenant William Ronald Cooke.
However, the mission was not without casualties. Davies and Cooke in DH4 (7429) were forced down and crash landed near Ramscappelle. Cooke was wounded though Davies was uninjured. Lieutenant Percy Byron McNally and 2nd Class Air Mechanic C Kelly in DH4 A2157 were shot down and killed near Melle by Leutnant Wilhelm Bockelmann from Jasta 11. Shortly after this, Lieutenant Percival Gordon Kirk and 2nd Lieutenant George Young-Fullalove were seen diving their DH4 (A7475) to attack an enemy aircraft. They were then seen to burst into flames and crash south of Ostdunkerke. Young-Fullalove was seen jumping from the burning aircraft. Both men were killed. Vitzfeldwebel Georg Strasser from Jasta 17 claimed the victory.
Around this time, RFC Headquarters issued orders for daylight bombings by DH4s to be conducted from at least 15,000 feet to reduce wastage of this type of aircraft which were in relatively short supply. One imagines this type of operation and the subsequent losses would have influenced this decision.