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MERGED: Qantas Decompression ?

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MERGED: Qantas Decompression ?

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Old 28th Jul 2008, 06:59
  #301 (permalink)  
 
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Interesting article...

Had this occurred say mid way to Johannesburg, or somewhere between Los Angeles and Australia, the jet, forced to fly at less than 10,000 feet would have consumed much more fuel than normal, and it could have all ended rather badly.
This was mentioned earlier in this thread, on the first day in fact.
Good work Ben Sandilands, I know you're reading
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Old 28th Jul 2008, 07:19
  #302 (permalink)  
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AD to check bottle mounts months ago
The original Boeing SB was issued December 19, 2002. Only 83 aircraft worldwide affected. Qantas management has said that only 3 Qantas 747s affected. This aircraft was not in that 3.

Good work Ben Sandilands
Maybe he will get a mention on Media Watch for plagiarism.
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Old 28th Jul 2008, 07:32
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Had this occurred say mid way to Johannesburg, or somewhere between Los Angeles and Australia, the jet, forced to fly at less than 10,000 feet would have consumed much more fuel than normal, and it could have all ended rather badly.
So the depressurised critical point is no longer considered in flight planning now days?

The airlines must have all gone downhill fast since I stopped flying.
What ill-informed crap!
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Old 28th Jul 2008, 07:41
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man, if this was a bottle (either O2 or cargo fire) I will be very surprised.

Something must've gone really really wrong.

To me it still looks like something in the baggage/freight. Whether it caused the hole or upset the bottle. But a bottle on it's own?

Really looking forward to finding out for sure, the suspense is unbearable!
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Old 28th Jul 2008, 07:46
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Boy - are you in trouble for being late!

Looks like the grievance committee is also the PR committee.
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Old 28th Jul 2008, 08:04
  #306 (permalink)  
 
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It was a Pax O2 bottle. Pieces of it were found in the main cabin. Ben Sandilands, you seem to believe everything you are told. Maybe you shouldn't?
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Old 28th Jul 2008, 08:43
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Some computer functions and electrics were affected - all 3 ILS shut down and the Capt’s FMC.
Scratching my head over this one

ILS: VOR/ILS antenna cables damaged? May have worked during approach if LOC or APP mode had been selected?

FMC: Weird... I wonder if the shrapnel pierced the Main Equipment Centre? Surely the FMC is protected from sensor input shorts (FQIS, etc)?
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Old 28th Jul 2008, 09:09
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Some computer functions and electrics were affected - all 3 ILS shut down and the Capt’s FMC
Hope they had the Garmin 396 all charged up in the bottom of the flight bag!
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Old 28th Jul 2008, 10:44
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Trojan 1981, you and Ben Sandilands obviously have no idea of flight planning considerations on a long haul sector over water. All possible contingencies, including depressurization are caterd for with suitable PNRs and diversion capabilities.
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Old 28th Jul 2008, 10:52
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Even when flying to Perth?
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Old 28th Jul 2008, 10:56
  #311 (permalink)  
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Well Lasior, sh!t happens now and then which usually is not the fault of the system.
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Old 28th Jul 2008, 11:14
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reply to hotdog

like it or not ben sandilands and peter harbison seem to be the go to "experts" on all things aviation.
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Old 28th Jul 2008, 11:23
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Question

...my understanding is that LSALT is above the max. altitude the engines are certified to be relit. Last time I think I went over Afghanistan, LSALT just a bit lower.
As I understand the rules, supplementary oxygen is required on routes where terrain would prevent immediate descent to 10,000 feet in the event of depressurisation and the aircraft would need to remain above this altitude for some time during the diversion - e.g. some parts of Iran which would be on a direct Singapore - Europe non-stop flight.

Now, if the oxygen system is responsible for a depressurisation, where do we stand as regards a diverting aircraft flying above 10,000 feet for an extended time with insufficient oxygen to supply the passengers for the duration?

I hope the full implications of an unprecedented, unexplained and unexplainable aircraft oxygen system bottle explosion are becoming clear.
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Old 28th Jul 2008, 11:35
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to blacksheep

good post blacksheep.
If indeed the cause is a ballistic o2 cylinder [as it seems to be, if one can believe anything ] your inference will have the boffins scratching their heads raw.
How indeed?
Chem gen's the size of a suitcase?
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Old 28th Jul 2008, 12:00
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Um, I was being sarcastic guys!
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Old 28th Jul 2008, 13:45
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All possible contingencies, including depressurization are catered for with suitable PNRs and diversion capabilities.
Hotdog..what utter BS.

Qantas is no different to all the others! It's all about costs.
Flightplans are just that. A Plan. They bare no resemblance to the real world!

As a FlightPlanner once told me...

"It's a calculated risk! We make the calculations, and YOU take the risks!

How true!!!
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Old 28th Jul 2008, 20:37
  #317 (permalink)  
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Well Capt. you are entitled to your opinion, BS or not.

Qantas is no different to all the others! It's all about costs.
Flightplans are just that. A Plan. They bare no resemblance to the real world!
Not all airlines are like yours or Qantas, I was involved in the flight planning of a 14 hour long haul sector in a previous life, which would not have been possible if all contingecies were not taken into consideration. Depressurization formed a large part of that.
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Old 28th Jul 2008, 23:07
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BS was a rather harsh description! I'll retract that!

The rest stands...
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Old 29th Jul 2008, 02:15
  #319 (permalink)  
 
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striking similarites to Apollo 13.... did i hear "Manilla we have a problem"?
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Old 29th Jul 2008, 04:26
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Does inadvertantly putting Nitrogen in an Oxygen tank lead to any sought of corrosive action?
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