Hello Martin, thanks for that. I also read an article about that on absa39-45. Also this site provides some details:
https://francecrashes39-45.net/page_...av.php?id=3703
Generally the PBY was unarmed for the long flight from Darrell´s Island (Bermudas t/o at 11.00h GMT on 6.4.43) to Scottland. Because of bad weather the plane was re-routed to Plymouth, but missed it. Disorientated the crew found itself at 13.00h over l´Aber Wrac´h when targeted by flak and fighter and pilot Capt Eddie H. Stafford decided to ditch her at 13.45h.