Australia, New Zealand & the Pacific Airline and RPT Rumours & News in Australia, enZed and the Pacific

QZ535 loses cabin pressure

Old 22nd Nov 2017, 14:55
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QZ535 loses cabin pressure

Air Asia Perth to Bali reports of plummeting at 11m/s
(How often does that happen?)
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Old 22nd Nov 2017, 15:32
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Meters Per Second to Feet Per Minute | Kyle's Converter
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Old 22nd Nov 2017, 15:47
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Not sure i'd describe that as plummeting...
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Old 22nd Nov 2017, 18:29
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Ah ha but you're not a journalist in 2017 desperate for a tag line in your failing rag.
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Old 22nd Nov 2017, 18:59
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Oh dear god, I was PLUMMETING from the sky at 25m/s tonight,
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Old 22nd Nov 2017, 19:00
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News.com.au reports plummeting at 700m/min from 10,000 to 330 feet....
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Old 22nd Nov 2017, 20:20
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A terrifying rate of 2,200fpm 😒
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Old 22nd Nov 2017, 21:58
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I assume they mean ROD was 2200FPM as the aircraft descended from FL330 to 10,000ft???. I’d blame this on a graduate but nah.
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Old 22nd Nov 2017, 23:29
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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.
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Old 23rd Nov 2017, 00:12
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Please hold onto any further discussions until our resident aviation expert, GT has provided his opinions.
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Old 23rd Nov 2017, 03:08
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Definition of plummet.

fall or drop straight down at high speed.
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Old 23rd Nov 2017, 09:46
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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.
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Old 23rd Nov 2017, 11:52
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............
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Old 23rd Nov 2017, 13:28
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Originally Posted by Glorified Dus Briver View Post
Please hold onto any further discussions until our resident aviation expert, GT has provided his opinions.
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.
Luckily, Geoff and AJ seem to be on good speaking terms....
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Old 23rd Nov 2017, 14:34
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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
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Old 23rd Nov 2017, 15:22
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I can’t keep up with all these ScareAsia incidents, mods...maybe time to start a sticky or something?
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