[Larry]

According to The Battle File by Sidney Shail (Air Britain Publications), L5584 of 142 Sqn carried a crew of three: PO MJA Kirdy, Sgt N Loncluse and Sgt RM Hettle, who were all killed.

It would have carried a QT Squadrion code though William Chorley in RAF Bomber Command Losses of the Second World War 1939-1940 says the code was WT which I think is an error.

They took off from Binbrook at 00.05hrs and their loss is described as missing without trace so the exact cause is not known and therefore the crew is commemorated on the Runnymede Memorial.

If L5584 was shot down by a Nightfighter then there may be a corresponding claim by a Luftwaffe unit, though at this stage in the war it was less common. More likely is that it was hit by flak or had engine trouble over the sea and ditched.

The target that night was as you say Evere Airfield nr Brussels.