---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Fri 06/10/16: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:51 PM - Re: Rotax 914 Airbox / Fuel Pressure Differential (pestar) ________________________________ Message 1 _____________________________________ Time: 02:51:37 PM PST US Subject: Europa-List: Re: Rotax 914 Airbox / Fuel Pressure Differential From: "pestar" Real world experience. I have the UMA differential fuel pressure sender which feeds into my MGL EFIS. Recently after just taking off 500AGL I watched my fuel pressure disappear to zero, then the motor started missing and ultimately stopped. I made a forced landing into a field which had many rabbit holes, one of which damaged my front leg. What benefit did I get from having it - I had 16 seconds of time available to me after noticing the sagging fuel pressure, I swopped fuel tanks (didn't work), was able to get a MAYDAY call out and then flew the aircraft to the ground. By having the gauge I knew straight away it was fuel problem and tried to plan in the time I had available to me which was not a lot. Why did this incident happen - it was MY fault. My 914 on a hot day is difficult to restart, I was on a AOPA fly around and flying into a number of sheep station strips that day. To restart my 914 I turn both the primary and secondary fuel pumps off and turn the engine over, when it catches I turn the secondary pump switch on to maintain fuel flow. My primary pump is always on and is turned on/off by an electronic ECB (button pushes on the EFIS) so it is a procedure to turn it on, I had done this in the many take-offs earlier in the day but this time rushing to line the aircraft with lots of others I did not. SO when turning my secondary pump off after take-off (my SOP's state turn off secondary at 500'AGL -wrong) the fuel pressure indicator did what it did all very correctly. To prevent this from happening again I have altered my checklist to include the primary pump, have a bright green (on) primary fuel pump indicator on the MGL EFIS and red when it is off and never ever turn my seconday off until 1000'AGL So from a real world experience I am glad to have a fuel pressure gauge on my 914. I now also know how my wife reacts because she was with me. Did not say or growl a word and jumped straight back into a Cessna 180 which took us back to our accommodation for the night after all this drama, I was impressed. Cheers Peter -------- Peter Armstrong Auckland, New Zealand DynAero MCR-4S (Do not shoot me :) ). Read this topic online here: http://forums.matronics.com/viewtopic.php?p=457022#457022 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.