Oops, there was probably a liability to the Deutsche Bundesbahn and a damage report to the transport insurance due.
Derailment
D 347 from Cologne arrives according to the station clock at 14:11 h for the onward journey to Berlin Stadtbahn
and moves right up to the exit signal.
Scheduled arrival would have been 13:21 h.
Continue should be at 13:26 h.
At 14:14 h a 218 pulls in the IC Münchner Kindl for the onward journey to Hanover.
Scheduled arrival 13:49 h / scheduled darture 13:50 h.
I guess the higher ranking trains got preferential treatment.
There were no coordination problems between cargo and passenger traffic for support by the diesel locomotives.
Even if the diesels were available, ICE trains would probably stop today, take a different route or end unscheduled somewhere else.
(The timetable times given are taken from the 1975 timetable book due to lack of 1976 documents).