I am assuming that Frankenhofen is the name of a village. So, if i understand this correctly there are two Frankenhofen's relatively close to each other.
The "L48..." are map coordinates. In the details of the crash the village of Ehingen is mentioned and they were on a bombing run to Augsburg.
Are there any historical archives/societies in the area? The following information may shed some light on which Frankenhofen it is.
Excerpt from RCAF Report (The report mentions a US bomber, but it was actually Canadian).
"Exhaustive investigations in the Ersingen-Risstissen areas revealing no trace of any aircraft. I proceeded to the Rathaus Ehingen (“X” 47.67) and i examined the relevant files for the whole of Ehingen landkreis. The only incident recorded there which refers to British aircraft was a report from the Buergermeister at Frankenhofen (“X” 38.72) concerning a supposedly American 4 motored bomber which crashed near there on the night 25/26:2:1944. Heir Reisch, clerk to the Landrat, who is at this moment engaged in compiling a record of Allied Personnel buried in this area for the French Authorities, assured me that this was the only aircraft to crash at that time in the whole Ehingen area. The following is a report i took from from Hernn Eierstueck, Buergermeister of Frankenhofen".