dimit Posted February 24, 2012 Report Share Posted February 24, 2012 The report is longish, but the conclusions are striking and worth the read. Deepest respect for the pilot, who got to the ground safely from such a difficult situation! TSB Report Cheers, D Mitten Quote Link to comment Share on other sites More sharing options...
ThreePer Posted February 24, 2012 Report Share Posted February 24, 2012 Very interesting thank you for the link. Quote Link to comment Share on other sites More sharing options...
Bell-powered Posted February 24, 2012 Report Share Posted February 24, 2012 Good read, I love reading this reports as you can always take something out of it.. A engine relight system sure would have helped. Nice to fly a Jetranger equiped with that. Quote Link to comment Share on other sites More sharing options...
gwk Posted February 25, 2012 Report Share Posted February 25, 2012 An engine re-light system does not always work, I can attest to that with my one and only real life auto. The stainless steel air line to the fuel control broke/cracked under the hex nut and the poor ol engine decelled, and there I was staring at the auto relight light with nothing happening, but my shorts filling up. Luckily I managed to auto onto a frozen pond and did no damage to Lois,s base machine, ( Norman Wells ), but a wise lesson to all, that auto re-light is NOT the be all to end all some pilots seem to think it is. 1 Quote Link to comment Share on other sites More sharing options...
Jammed left Posted February 25, 2012 Report Share Posted February 25, 2012 Thanks for posting Dick... I know a lot of old guard that swear by draining the filters with boost pumps off...this sheds some new light on the perennial issue... Cheers Quote Link to comment Share on other sites More sharing options...
skullcap Posted February 25, 2012 Report Share Posted February 25, 2012 Many of us did not know the air was NOT being bled out of the system and with a flow thru system the theory was that you were not getting the contaminants out of the system by bleeding with the pumps on. This is a two fold issue: -Air is not being purged out of system as was explained, thus need to drain pump on. -When you have updated check valves then you run risk of fuel being bled down out of lines back to tank thus air entering when aircraft is sitting shutdown. Glad there was such thorough investigation into this crash which has brought to light a difficiency in the system. Quote Link to comment Share on other sites More sharing options...
Coastal Posted February 25, 2012 Report Share Posted February 25, 2012 Thanks for posting Dick, very interesting read. I too have met a handful of experienced pilots who suggested draining the fuel filters with no boost pump pressure. If you read the bottom of that report you can see that the Frenchies don't necessarily agree with the TSB's findings and are doing more investigating. Slightly unsettling that there doesn't seem to be a firm conclusion to this report or solution to the problem. "2. After routine fuel filter maintenance, the fuel system bleeding procedure does not ensure the system is completely purged of air, thereby increasing the risk of an engine flameout." That's also a little unsettling. H Quote Link to comment Share on other sites More sharing options...
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