by sonex1678 » Tue Oct 21, 2014 6:10 pm
Condolences to the family and friends of both pilots....
Both pilots appear to have been very experienced and flying in relatively fair weather conditions, so we have to ask what went wrong and try to learn from the events. I know that flying in Alaska it was critical to be aware of the environment as much was unsuitable for emergency landing (mountainous terrain, ice crevasses, swampy tundra, remote forest, etc.)--living now in Florida, where these accidents occurred, I have to remind myself that much of the terrain here is also unsuitable for what might otherwise be a relatively "simple" engine out landing. Much of the land that is not developed is either jungle like, or swampy, and much is relatively remote and difficult to access quickly, all which make for poor emergency landing options. As a result, flying in much of Florida requires some additional vigilance (planning flights around, or over "at altitude", over remote and/or swampy areas, for example). So please keep this in mind if you live in, or plan to visit, the Sunshine State....
More important, though, is that these seemingly fine aircraft with experienced pilots at the controls had to make unplanned landings, and at least one appears to be because of loss of engine power (on-ground eye-witness) and the same may be true of the other. There seems to continue to be an issue with certain engine types "burping", losing power, or stopping in flight. Investigations into these events often find nothing wrong, so vapor lock is suspected. I think it would be worth a look back at all such events to see if there is a common factor, or factors, such as use of auto gas in hot environments, inadequate fuel line heat protection, inadequate slope of the fuel line allowing a place for vapor lock to occur, or a combination of these and/or other factors. If there is a problem with these engines' operation in certain conditions, we need to identify the causal factors and take corrective action to eliminate or mitigate them, so the off field landings don't occur in the first place. The sooner we do so, the safer we will be as individuals and a community. And the loss of those before us will not be in vain.
Douglas B Scripture
Sonex 1678