I read Kathryn?s Report for continuing safety education. An accident in 2015 in California involved a Czech built LSA with Rotax 912ULS engine. The NTSB said the cause of the accident was attributed to fuel vapor lock which has been discussed many times in this forum.
The airplane manufacturer didn?t include a fuel return line with restrictor as Rotax installation requires. The airplane apparently flew successfully for 300TT and then developed vapor lock.
My takeaway on this accident is that this is analogous to shutting off the electric fuel pump in a RV-12. This topic has been discussed very thoroughly and can be searched for in this forum.
For what it?s worth, I?ll restate my opinion that the RV-12 electric fuel pump should run all the time as designed by Vans Aircraft in order to mitigate vapor lock.
See also? http://www.kathrynsreport.com/2018/1...-accident.html
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
Bought Flying RV-12 #120058 Oct 2015 with 48TT - Hobbs now 610
LSRM-A Certificate 2016 for RV-12 N633CM
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H