QZ535 loses cabin pressure
Oh dear god, I was PLUMMETING from the sky at 25m/s tonight, 
Join Date: Aug 2007
Location: Australia
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A rate of 11 m/s equates to approximately 2200 ft/min. That is a standard descent rate. Emergency descent procedures require a descent near mmo/vmo unless structural damage is suspected. It also requires extension of full speedbrake resulting in a rate of descent in excess of 4000'/min. I suspect the speedbrakes weren't even deployed contrary to SOP's and I'd love to know the actual speed on descent. I guess we will have to wait for the full report.
A more prudent descent is existing speed, speed brake until the possibility of structural damage is eliminated. Existing speed VS Vmo makes little difference to the time,reduces workload in moving speed bug during descent, existing speed covers manouvering margins due weather, turb etc, frees up some brain space to evaluate the problem.
From Geoffery Thomas - West Australian newspaper
Report into Air Asia flight QF535 found pressurization system to blame
AirAsia flight QF535 was on its way to Bali from Perth and had started climbing from 24,000ft to its initial cruise altitude of 34,000ft when problems emerged.
Report into Air Asia flight QF535 found pressurization system to blame
AirAsia flight QF535 was on its way to Bali from Perth and had started climbing from 24,000ft to its initial cruise altitude of 34,000ft when problems emerged.
Join Date: Oct 1998
Location: Kalgoorlie, W.A. , Australia
Age: 86
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Lift speeds
Fastest:-
Taipei 101 Skyscraper Speed: 3,313 feet/min, Height: 1,670 feet, Elevator Supplier: Toshiba. Time From Ground To Roof*: 30 seconds.
Burj Khalifa — Dubai, United Arab Emirates is 3rd fastest, Speed: 1,968.5 feet/min, Height: 2717 ft, Time From Ground To Roof*: 1 minute 22 seconds,
Supplier Otis.
Freshwater Place, Melbourne, Australia, Elevator speed: 1,772 feet per minute.
In Kalgoorlie the old mine shafts would wined at 1900 ft/min however I read that in South Africa 6000ft shafts wined men at 3000 ft/min and ore at 4000.
Note:- Mine shafts are limited to 6000ft because of rope weight so places like Western Deep have to 3 stage shafts, surface and two internal.
So office workers often plummet at these speeds
Taipei 101 Skyscraper Speed: 3,313 feet/min, Height: 1,670 feet, Elevator Supplier: Toshiba. Time From Ground To Roof*: 30 seconds.
Burj Khalifa — Dubai, United Arab Emirates is 3rd fastest, Speed: 1,968.5 feet/min, Height: 2717 ft, Time From Ground To Roof*: 1 minute 22 seconds,
Supplier Otis.
Freshwater Place, Melbourne, Australia, Elevator speed: 1,772 feet per minute.
In Kalgoorlie the old mine shafts would wined at 1900 ft/min however I read that in South Africa 6000ft shafts wined men at 3000 ft/min and ore at 4000.
Note:- Mine shafts are limited to 6000ft because of rope weight so places like Western Deep have to 3 stage shafts, surface and two internal.
So office workers often plummet at these speeds
I can’t keep up with all these ScareAsia incidents, mods...maybe time to start a sticky or something?
