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Date: Thu, 07 Jun 2012 11:48:01 -0400
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Subject: Re: [LML] Re: 4P rear window blew out
From: "William A. Hogarty" <billhogarty@gmail.com>
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FWIW and adding to Jeff's thoughts, during climbout, solo in a T-33, I
had an unexpected canopy ejection passing FL 230. (Think very very
loud 20 mm canon going off right behind your head) Without the
restriction of the canopy, the pressurization picked up all the dust
and dirt that had accumulated under the floorboards for decades, and
deposited it all in my eyes (or so it seemed)..By the time I dug out
all the debris and could see again, I was descending thru 3000
feet..OPPS   Very good thing that I happened to be flying over a flat
part of Nebraska.   Shi- happens, be ready, fly safe

On Wed, Jun 6, 2012 at 2:57 PM,  <vtailjeff@aol.com> wrote:
> Ralf,
>
> Download your flight data from your EFIS and see how well you reacted --i=
e
> got plane pointed downhill, good=A0rate of descent, etc. You might be
> surprised. For those not in the best aerobic shape a sudden loss of cabin
> pressure can be quickly debilitating at FL 200-280. Your time of useful
> consciousness may be measured in seconds.
>
> One important lesson for all is where is your O2 mask and how quickly can
> you get it on and start the flow of O2? When was the last time you practi=
ced
> this? Is your O2 bottle serviced? How many minutes supply do you have for
> you and your passengers?=A0 This is not the first Lancair to experience a
> cabin depressurization this year.
>
> Jeff
>
>
>
>
>
>
>
> -----Original Message-----
> From: bronnenmeier <bronnenmeier@GROBSYSTEMS.COM>
> To: lml <lml@lancaironline.net>
> Sent: Wed, Jun 6, 2012 10:48 am
> Subject: [LML] Re: 4P rear window blew out
>
> Dear subscribers,
>
> Yesterday morning I had already unexpected visitors from the FAA. The
> two gentlemen took pictures of the plane and the missing window and
> inspected all my log books and my personal information. They told me
> that they have never seen anything like this before and told me that
> everything was ok before they left. I also filed a NASA report as Jeff
> recommended.
>
> Thanks also for all the kind comments that I got off the list.
>
> My seat covers are still fine - fortunately I always have the urge to
> use the bathroom heavily before a longer flight  - I guess this
> protected me this time :-).
>
> On my flight from 5G7 to ISM I noticed negative cabin altitude during
> climb (the differential pressure was still well below 5 psi) - my
> girlfriend's suitcase had blocked the outflow valve - I put a tennis
> shoe underneath and it fixed the problem.
>
> On the way back from ISM to 5G7 clearance did not have my flight plan. I
> turned off the engine and filed again. I was a little worried about how
> the warm engine would start since it was almost 100F outside. Since I
> use the new hot start procedure that I got here from the list it always
> starts up right away (throttle, mixture pulled out - high boost 20 sec -
> switch to low boost - throttle 1/2 " in - start cranking - push mixture
> slowly in - it usually starts with the mixture half way in)
>
> The first two hours into the flight were uneventful above the clouds
> with light turbulence and about a 40 kts head wind. My flight bag with
> the oxygen masks was in the back on top of all the luggage - big
> mistake! - I will always keep the masks in the front now.
>
> Over sudden a big bang without any reason. Popping ears that hurt, loud
> wind noise and a girlfriend that seemed to squeeze off my arm. I look in
> the back - no flight bag. I pulled the throttle to idle, disconnected
> the auto pilot, moved the speed brakes out and point the nose down. I
> call ATC and tell them that I need to descent immediately because of
> loss of cabin pressure. I get clearance down to 11K. At 14 k or so I
> enter IMC. At 11k the engine does not take the throttle well - I am
> still IMC. I check and see that the mixture is still pulled. I put the
> MAP to 24 and fix the mixture, level the plane and engage the autopilot.
> On flight aware (40941) I see some significant altitude changes - I
> don't know if this was me trying to figure out things in IMC or if it
> just got reported wrong.
>
> After the plane flies straight and level in auto pilot again I start
> looking around and find that the drivers rear window is missing
> completely. I disconnect the AP and start checking rudder and elevator -
> everything behaves as it should. I call ATC and tell them that I lost a
> window and that everything is under control. I get clearance to 9K.
>
> At 9 K I start thinking about my options. I read on this list once that
> if you get hit or your plane is damaged that the safest speed is the
> speed that you are going right now. So I leave the MAP at 23, lean the
> engine and decide to continue my trip home to 5G7.
>
> I inventory the back - a few sweaters and my flight bag are missing. We
> put on some additional cloths (cabin temp is now below 50F with heat on
> full open). With the reduced speed it was a little more than two hours
> until me made it home.
>
> I can't tell you how relieved I was once I got 3 green from the landing
> gear. We touched down uneventful at 10:15 pm or so.
>
> My wallet (ID, credit cards, SS card... pretty much everything) and my
> keys were in my flight bag. Fortunately we had the second shift working
> in the plant I got a key to the hangar and a service car. Unfortunately
> I am a German resident alien without ID documentation now. I need to get
> my green card replaced first. Until then I can't even buy beer at
> Walmart because you need an ID for this.
>
> Attached you see a picture before we left - the second part of the
> flight my girlfriend did not look quite as happy as on the picture. She
> stayed pretty quiet during the whole situation but I will probably have
> to think about some good arguments to get her in the plane again.
>
> Ralf
>
> -----Original Message-----
> From: John Hafen [mailto:j.hafen@comcast.net]
> Sent: Wednesday, June 06, 2012 8:28 AM
> To: lml@lancaironline.net
> Subject: RE: [LML] Re: 4P rear window blew out
>
> Yeah, come on Ralf.  We want to hear about Doritos bags blowing up and
> all that fun stuff!
>
> John Hafen
> Veteran of pressure blow-out over the Saw Tooth mountains of Idaho at
> 17.5 Required new seat covers
>
> -----Original Message-----
> From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
> Bill Bradburry
> Sent: Tuesday, June 05, 2012 10:28 AM
> To: lml@lancaironline.net
> Subject: [LML] Re: 4P rear window blew out
>
> Ralf,
> That is a pretty calm way to report the incident.  You didn't mention
> any damage to the seat covers?  :>)
>
> Are we to understand that you just calmly requested a lower altitude and
> then continued on to your destination?
>
> B2
>
> -----Original Message-----
> From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
> bronnenmeier@GROBSYSTEMS.COM
> Sent: Tuesday, June 05, 2012 8:26 AM
> To: lml@lancaironline.net
> Subject: [LML] 4P rear window blew out
>
> Dear subscribers,
>
> Does anybody have a spare driver rear window for a 4P?
>
> Mine blew out at FL200 last night coming home from Florida. A few
> personal belongings got sucked out of the cabin but the airplane handled
> just fine and no emergency was declared.
>
> Three corners of the window are still in the frame. The outside skin of
> the plane is fine except on rear vertical line - there is about a three
> inch tear. It is pretty obvious that the plexi-glass must have cracked
> and not the outside skin. Some minor paint damage on the horizontal
> stab. Anybody out there with a similar experience?
>
> Ralf
>
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