Emergency Qantas landing?

[Evan]

If we didn't need seat belts then they would not be installed :!:

Bill, Been to China ? shoud take a taxi, i guess they are such good drivers they don't need seat belts thats why they are removed / hidden

Have seen the effects of CAT in a small plane and also heard about all the stories in large aircraft i do keep my selt belt on when seated. (Lots of this in the news recently, 2 x China airlines, an AA flight the other day and a couple of others i cant recall what airline involved)

E

 

[straitman]

Bill, Been to China ? shoud take a taxi, i guess they are such good drivers they don't need seat belts thats why they are removed / hidden

Have seen the effects of CAT in a small plane and also heard about all the stories in large aircraft i do keep my selt belt on when seated. (Lots of this in the news recently, 2 x China airlines, an AA flight the other day and a couple of others i cant recall what airline involved)

E

Evan,

I guess I'm talking theoretically and you are talking practically. Sometimes there is a huge difference. :shock:

 

[NM]

If we didn't need seat belts then they would not be installed :!:

Does the same theory stand for your tonsils and appendix?

 

[simongr]

I cannot understand why anyone would remain in their seat without their seatbelt fastened and even more important for those that like to lie across 3 or 4 seats during a flight.

I guess for some people it is a hassle putting it on and taking it off. The same reason that people dont wear seatbelts when driving - they dont think it will happen to them.

 

[oz_mark]

I guess for some people it is a hassle putting it on and taking it off. The same reason that people dont wear seatbelts when driving - they dont think it will happen to them.

But that doesn't explain why as soon as the seat belt sign goes off you hear a pile of clicking around the cabin. Sure I can understand you might not put it on after taking a walk, but what's with the take em off as soon as the lights off.

 

[straitman]

Does the same theory stand for your tonsils and appendix?

YES :!:

Until a fault develops

 

[browski]

The ATSB are giving a media conference today (14th Oct) at 7.00pm to further give light to the cause of the problems on the Oct 7 incident.

MEDIA ALERT : 14 October 2008 - Qantas Airbus A330 Accident on 7 October 2008


The flight initially:

• ascended 200ft and then
• descended 650 ft in 20 sec and then
• descended 400 feet in about 16 seconds

Maybe the significant negative G (descent) will make this aircraft a writeoff?

 

[Kendall Roy]

Maybe the significant negative G (descent) will make this aircraft a writeoff?

Doubt it - QF wouldn't allow it!

 

[oz_mark]

I have not heard or seen any comment that questions whether the aircraft is airworthy or not. They were last week even talking of flying it back to Airbus for them to take a look at.

 

[Anna]

The ATSB are giving a media conference today (14th Oct) at 7.00pm

That's a particularly media-unfriendly time for a press conference. Too late for the TV news and getting late for tomorrow's papers. They must be deliberately trying to minimise the coverage.

 

[NM]

That's a particularly media-unfriendly time for a press conference. Too late for the TV news and getting late for tomorrow's papers. They must be deliberately trying to minimise the coverage.

In time for Perth and Singapore evening news reports.

 

[v8Statesman]

In time for Perth and Singapore evening news reports.

If I see anything on the 6pm news (9pmEDST) I shall make a post

 

[ScaredStupid]

Hmmmm .. I'll be waiting with interest :shock:

 

[serfty]

More here:

http://www.abc.net.au/news/stories/2008/10/14/2391134.htm?section=justin

Authorities have blamed a faulty onboard computer system for last week's mid-flight incident on a Qantas flight to Perth.

The Transport Safety Bureau says incorrect flight information was transmitted to the auto-pilot computer, causing the aircraft to dive.

... the Bureau identified the plane's air data inertial system as the cause of the problem.

The Bureau says the incident was unique.

Airbus is issuing worldwide guidelines to its entire fleet as a result of the incident.

 

[ScaredStupid]

Would the plane have been in danger of crashing because of this?

 

[straitman]

Would the plane have been in danger of crashing because of this?

ScaredStupid,

Extremely unlikely.

 

[oz_mark]

See also MEDIA RELEASE : 14 October 2008 - Qantas Airbus A330 accident Media Conference


(Note the timing of the news conference was to coincide with Airbus communicating with operators of the Airbus)

The faulty Air Data Inertial Reference Unit continued to feed erroneous and spike values for various aircraft parameters to the aircrafts Flight Control Primary Computers which led to several consequences including:

• false stall and overspeed warnings
• loss of attitude information on the Captain's Primary Flight Display
• several Electronic Centralised Aircraft Monitoring system warnings.

About 2 minutes after the initial fault, ADIRU 1 generated very high, random and incorrect values for the aircrafts angle of attack.

These very high, random and incorrect values of the angle attack led to:

• the flight control computers commanding a nose-down aircraft movement, which resulted in the aircraft pitching down to a maximum of about 8.5 degrees,
• the triggering of a Flight Control Primary Computer pitch fault.

 

[Sprucegoose]

More here:

Computer error behind Qantas midair drama - ABC News (Australian Broadcasting Corporation)

Is it a manufacturers or operators liability?

The electronic throttle in my car has been known to, in the heat, delay responsiveness, however I service my car to the manufacturers specification. On that basis - Airbus one thinks?

The ATSB did not attribute direct cause I assume?

Regards SPRUCE

 

[Mal]

Interesting (positive spin) story from Fairfax regarding the pilot and how he handled the aircraft:

Aussie Top Gun saved QF72 - National - BrisbaneTimes - brisbanetimes.com.au

 

[straitman]

Is it a manufacturers or operators liability?

The electronic throttle in my car has been known to, in the heat, delay responsiveness, however I service my car to the manufacturers specification. On that basis - Airbus one thinks?

The ATSB did not attribute direct cause I assume?

Regards SPRUCE

Sprucegoose,

The last paragraph of the report states as follows:

There has been close and frequent communication between the ATSB, Qantas, Airbus, the BEA, and CASA. That close communication will continue as the investigation progresses to ensure that any additional safety action can be instigated as soon as possible should critical safety factors be identified. The ATSB expects to publish a Preliminary Factual report in about 30 days from the date of the accident.

Lets look for more info again on 6th November.