XPost: rec.aviation.piloting   
   From: BtB@BB.not.aaaaaaa   
      
   Flydive  wrote in news:4977401d$1_7@news.bluewin.ch:   
      
   > the.sargon@gmail.com wrote:   
   >> On Jan 20, 3:51 pm, Pos...@newsgroups.com wrote:   
   >>> On Tue, 20 Jan 2009 09:28:27 -0800 (PST), the.sar...@gmail.com   
   >>> wrote:   
   >>>> Where on the checklist is the instruction to flip this switch?   
   >>> The manual states:   
   >>>   
   >>> At 2000 ft   
   >>>   
   >>> CABIN PRESS MODE SEL.............................Check AUTO   
   >>> ENG 1 & 2 BLEED, APU BLEED.......................OFF   
   >>> P/B DITCHING.....................................ON   
   >>> P/A............................................."TOUCHDOWN IN ONE   
   >>> MINUTE" Aim for an impact with an 11° body angle and minimum ROD.   
   >>>   
   >>> Poster   
   >>   
   >> However if you're also working an inflight engine unstart which takes   
   >> precedence?  Clarification: two engine unstart w/inflight emergency.   
   >> Quite a bit different from a situation that begins at cruise altitude   
   >> or with only *one* emergency rather than a sequence of events.  As a   
   >> PAX I would rather know that the crew are concentrating on landing   
   >> the aircraft (ditching) as gently as possible.   
   >>   
   >> That silly switch won't do a thing to save the buoyancy if the   
   >> fuselage is fractured by a rough ditching...a point one everyone   
   >> seems to miss.   
   >>   
   >> I would hazard (grin) a guess that the final review will show them to   
   >> have maintained situational awareness with the concomitant priority   
   >> management.   
   >>   
   >   
   > Again, there are 2 pilots in the cockpit, only one is steering the   
   > aircraft. If the captain was flying the aircraft, what was the copilot   
   > doing in those 7-8 minutes if he was not going through the emergency   
   > checklist? What the use of a perfect water landing if then the   
   > aircraft quickly fill with water because the ditching checklist has   
   > not been done?   
   >   
      
   There were dozens of things he would be doing. One, determining waht the   
   problem was.   
   Then, dealing with the immediate problem, an engine failure. Immediate   
   relight attempt. Probably the APU was fired up to assist in the relight.   
   as they would have been too slow for a windmill start.   
   Then a quick call to ATC and probalby a couple of nav selections for the   
   captain to look for a runway they could plunk it on.Then back to the   
   relight drill. We're taught to keep trying that to the bitter end, BTW.   
   They take a minute or so so he wouldn't have had time for more than one   
   or two, and that would have been after the APU had fired up, say at   
   abotu 1200'.  A couple of calls to the cabin would have been tossed in   
   their somewhere as well.   
   The act of picking up the book and finding the ditching checklist would   
   have taken a good 20-30 seconds...Time they simply did not have.   
   And this scenario is not done in the sim, so there would have been no   
   trigger for it. BTW, I'm beign generous with the actions they may or may   
   not have accomplished in the time they had. But all of them would come   
   ahead of doing a "nice to do " ditching checklist.   
      
      
      
   Bertie   
      
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