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"Ian Johnston" wrote in message news:cCUlhtvFIYkV-pn2-8OXf57VN35wC@localhost...
On Fri, 27 Aug 2004 21:38:02 UTC, (Mark James Boyd) wrote: : "Oh yeah? He had an accident? I bet he : didn't use the checklist!" I once had someone try to persuade me to use a checklist for a winch cable break. Yes, great, run through a list of actions which have to be started within a second and completed within a few ... the idiot's an instructor now, and feedback tells me that he's no less of an idiot... I recently read the accident report of the ASW20 crash (fatal) at Williams, CA. Per the check list, they did a positive control check of the elevator by having the assistant (co-owner) hold the elevator while the pilot applied force on the stick. Resistance was felt, check list passed. Only problem was the elevator was not hooked up and what the pilot felt was the push rod hitting the bottom of the elevator. Now, if the guy just LOOKED at the connection it would have been obvious that it was not hooked up (it is in plain site). Still, he had a second chance to save himself. When the glider decided to launch itself he could have immediately released and delt with the situation at a more survivable attitude (the tow pilot released him instead). Check lists are not substitutes for plain common sense. If you use them, do another walk around the glider without the list, looking for things you might have missed. Following a list may give you tunnel vision. A DC-9 was landed gear up by two experienced pilots following a check list (they missed one step). They were so certain that they had done everything right that they ignored the lack of the sound and thump of the gear lowering (common sense, again). Tom |
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Herbert Kilian wrote:
[....] Another comment: poking fun at the use of check-lists in this thread is very unfortunate. Herb, I see the main thrust of references to checklists in this thread as a denigration of overly detailed checklists, and as a warning against using checklists in situations where time is of the essence in responding to an abnormal attitude or condition of flight. I hope that everyone understands it is the misuse of checklists and not their proper and very necessary uses at which fun was being poked. Some immediate action steps must be committed to memory and become second nature. In many phases of flight, both normal and abnormal, a checklist is best used as a review. I think you are right about the conduct of control checks. Anybody should be able to move the stick as instructed, but only the pilot can be expected to know the feel of a properly connected system and that feel is best gained at the control surface. Assembly, control, and walk-around checks (always performed separately) seem to me to be the best examples of the "menu" approach to using a checklist. Jack |
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Another comment: poking fun at the use of check-lists in this thread
is very unfortunate. Exactly which part of my post was "poking fun"? I thought that I was being dead (pardon the pun) serious. I have 4 opportunities to catch an error on control linkages: 1. The initial hookup. 2. An immediate check of each control linkage after hookup. 3. The walk-around inspection. 4. Visual observation of control movement standing by the cockpit. Missing all 4 falls into the "being hit by an asteroid" category. Tom |
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On Tue, 31 Aug 2004 18:19:55 UTC, (Tom Seim)
wrote: : 2. An immediate check of each control linkage after hookup. Which I always get someone else to do. Ian -- |
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"Ian Johnston" wrote in message news:cCUlhtvFIYkV-pn2-uRi7CmzCveOr@localhost...
On Tue, 31 Aug 2004 18:19:55 UTC, (Tom Seim) wrote: : 2. An immediate check of each control linkage after hookup. Which I always get someone else to do. I have mixed feelings about this. Nobody knows your glider as well as you do (save, perhaps, by someone flying-or flown-the identical model). I certainly am not going to trust my life to someone who is unfamiliar with my glider. Additionally, flying a motorglider, I am often times the only one at the airport, so I have to do the complete assembly unaided. It wouldn't hurt to have someone else review the assembled glider after you had done all of your own checks, however. BTW: I check my Hottellier connections by simultaneously pressing on the release plunger and pulling on the rod. Of course, the connection has to be safetied first. I know of accidents where the connection was only part way on, passed a PCC, only to come off in (attempted) flight. Tom |
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![]() "Herbert Kilian" wrote in message (snip) Another comment: poking fun at the use of check-lists in this thread is very unfortunate. Herb, J7 I wasn't making fun of using a checklist. Using a checklist is important and I use a fairly detailed one religiously before each flight. I do not, however, need a line item telling me to remove the canopy cover before flight! -Bob Korves |
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