Don't remember if this one is already listed.
On 7 June 1944:
"The 440th TCG, with 62 aircraft, had four men killed and two wounded when they lost two planes to flak and from bomb loss when a P-47 flying escort over the Channel inadvertently dropped its bomb cluster on a C-47 flying below it."
https://amcmuseum.org/history/troop-...d-day-flights/