cap Posted December 17, 2008 Report Posted December 17, 2008 Whether factual or not, I remember at the time of the western crash, that something was said about inverters being taken off-line. Whether it was company speculation at the time or something official, I do not remember. I guess it still sits in my memory cells to this day because I remember my immediate thoughts at the time and I said "God no!". Those thoughts took me back to Mineral Wells, TX with the US Army because that was where you got posted for Vertol/Chinook courses and check-outs in those days. Number one thing that you were told about both a/c was that you NEVER took both inverters 'off-line' at the same time for ANY reason. If you did, the a/c would IMMEDIATELY go into extremely severe vibrations and the blades would proceed to eat the fuselage in large chunks. Knew the reason for that also, but they're part of my dead memory cells now. Related same to an ex-CAF Vertol Flight Engineer eons ago and he was more than quite familiar with that for some reason. Quote
Guest jacdor Posted December 17, 2008 Report Posted December 17, 2008 old dog, that was pretty much the story relayed to me years ago when I worked on B models and since they were similar in many of the flight controls, we all tried hard to learn from everyones previous experiences with either type just as jacdor is trying to do here. I don't have much to do with 214's anymore so if there is a lessom for someone out there, feel free to share. My thoughts there Vortex just trying to find out something about the aircraft, don't want to end up in the same situation and not know what to do about it. Your right about the hydraulics on the ST, can't turn both of them off at the same time. Also heard about the story of turning all electrical off to see what would happened. It's been a while since I did the course but I will have a look at the AC system again and see what the inverters are connected to. The other rumor was the "fly by Wire" that could Have gone awry and pitching the tail up or given it a roll and they may have tried to compensate for that and hit the tail boom with the blades or something like that I know for a fact that the FBW is a problem so I keep it off and stowed when working or on short flights. Your limited to 100kts without it. Makes you wonder what Bell Heli was thinking when they designed the electrical system on that aircraft Elvis I tried the link you gave me but nothing comes out of it I will try again Jacques Quote
Guest jacdor Posted December 17, 2008 Report Posted December 17, 2008 Can't do any better with the format. This an article that I have found when I was looking for Infos on the 214ST accident a while back. Took me a while to find it back. They do talk about a possible electrical problem. Article dated 1989 Jacques CASB wants wider flight recorder rule MONTREAL The Canadian Aviation Safety Board (CASB) intends to recommend that Transport Canada extend requirements for flight-data recorders to ease accident investigation. The more stringent and broadly based regulations to be proposed would cover both aircraft and helicopters, the CASB says. The subject appears in the CASB report of a Bell 214ST accident investigation in Newfoundland in 1985. CASB investigators failed to determine cause-related findings, even though all the major components of the machine were recovered. Moreover, a second Bell 214ST crashed, killing its GENERAL AVIATION crew, during a series of operator's flight tests intended to duplicate the suspected flight conditions of the first helicopter. "If the [first] aircraft had been equipped with a cockpit voice recorder (CVR) and or flightdata recorder (FDR), the evidence needed to support cause-related findings might have been uncovered," says the CASB. The second accident "may thereby have been avoided". The crew of the second helicopter intended to document helicopter and systems response to simulated electrical malfunctions. The CASB says that investigators found no evidence that an electrical failure led to the first accident. According to Paul Powers, Bell director of flight safety and certification, the electrical system was virtually exonerated after laborious tests by Bell and the CASB. Powers says that the lack of a flight recorder hampered efforts to find a cause. Neither a CVR or FDR is required by Canadian regulations for offshore helicopters. Quote
500driver Posted December 18, 2008 Report Posted December 18, 2008 Going way back.....But I seem to remember something about hydrogen embritlement of the swashplate uniball. Ring any bells? Quote
old dog Posted December 18, 2008 Report Posted December 18, 2008 There is one way to find out This assumes that the TSB accurately determined the root cause of both accidents. For some of us, including some folks really experienced in this sort of thing, their story didn't fit very well. Quote
old dog Posted December 20, 2008 Report Posted December 20, 2008 well, the general concensus is to wait for the TSB results in todays accidents and to stop the speculation. After all, they do have access to alot more resources than the average joe. We could ask you where you fit into the picture having more experience than TSB investigating 214 crashes and causes, but that would ultimately turn into a pissing contest. Bottom line is....none of us were there on either of those aircraft, so even if you think your version is more accurate than TSB's....you're just speculating. Found this to add into the discussion: http://www.flightglobal.com/pdfarchive/vie...20-%200408.html whatever Quote
FREDDIE Posted December 22, 2008 Report Posted December 22, 2008 Seeing this is going no where fast I just thought I would Hijack this one and wish everyone here a Merry Christmas and a Happy New year!!!!! Cheers Quote
PedalJam Posted February 20, 2009 Report Posted February 20, 2009 BUMP found this pic in an old heli book i have Quote
Amphibious Posted February 20, 2009 Report Posted February 20, 2009 Saudi Aramco has a bunch for sale right now. kinda sad to seem them go, first helicopter ride - 214ST out of Ras Tanura. they are a helluva ship. Quote
Guest jacdor Posted February 20, 2009 Report Posted February 20, 2009 BUMP found this pic in an old heli book i have Must have been going somewhere it has the longrange fuel tank in it JD Quote
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