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Search: Posts Made By: ST27
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Forum: Tech Log
1st Jun 2011, 06:50
Replies: 3,435
Views: 1,668,356
Posted By ST27

As a previous post notes, the BEA report says...

As a previous post notes, the BEA report says that the PF pulled the stick back, resulting in the climb. It was not an updraft. Given the time the nose up command was applied, it was likely...
Forum: Tech Log
31st May 2011, 14:55
Replies: 3,435
Views: 1,668,356
Posted By ST27

Who was PF?

A number of news articles have stated that the PF was the relief pilot, who was the youngest of the crew, had the least amount of experience on type (800 hrs), and the least total flying time. If...
Forum: Tech Log
31st May 2011, 14:24
Replies: 3,435
Views: 1,668,356
Posted By ST27

Quote: Quote: The manufacturer...

Quote: Quote:
The manufacturer Thales was well aware of the catastrophic consequences of a failure of the speed sensors as early as 2005. At the time, the French company concluded...
Forum: Tech Log
31st May 2011, 14:02
Replies: 3,435
Views: 1,668,356
Posted By ST27

The news report was utter rubbish, and included...

The news report was utter rubbish, and included unnecessary sensationalism. And Miles O'Brien wondered why the media gets no respect from the pros.

The passengers were never pressed into the backs...
Forum: Tech Log
30th May 2011, 23:28
Replies: 3,435
Views: 1,668,356
Posted By ST27

ST27 Quote: ...

ST27 Quote:
The aircraft pitched up steeply and decelerated from cruise speed to a virtual standstill in the first 30 seconds or so ...
Forum: Tech Log
30th May 2011, 18:32
Replies: 3,435
Views: 1,668,356
Posted By ST27

There is ample opportunity for confusion, since...

There is ample opportunity for confusion, since at different points in the report ground speed, AIS, and the erroneous speeds on the displays are mentioned. To understand what they are saying you...
Forum: Tech Log
30th May 2011, 14:16
Replies: 3,435
Views: 1,668,356
Posted By ST27

The aircraft pitched up steeply and decelerated...

The aircraft pitched up steeply and decelerated from cruise speed to a virtual standstill in the first 30 seconds or so, then went from about 80 mph up to over 100 mph down. None of that would have...
Forum: Tech Log
30th May 2011, 11:52
Replies: 3,435
Views: 1,668,356
Posted By ST27

It's not clear if there was no stall warning...

It's not clear if there was no stall warning while the aircraft descended. The BAE report only states that the stall warning was suppressed when they reached the peak of their climb, when the...
Forum: Tech Log
30th May 2011, 02:08
Replies: 3,435
Views: 1,668,356
Posted By ST27

You forgot to include a good dose of luck in that...

You forgot to include a good dose of luck in that list.
Forum: Tech Log
29th May 2011, 22:08
Replies: 3,435
Views: 1,668,356
Posted By ST27

As I read the report, it appears that the stall...

As I read the report, it appears that the stall warnings were as a result of him pulling the nose up, not what caused him to the pull-up

Could he have felt the floor fall out from under him as a...
Forum: Tech Log
29th May 2011, 22:00
Replies: 3,435
Views: 1,668,356
Posted By ST27

It's not clear that the stall warning stopped as...

It's not clear that the stall warning stopped as they descended. All the report says is that it started up again as the speed increased, not that it later shut off. We will have to see the final...
Forum: Tech Log
29th May 2011, 21:54
Replies: 3,435
Views: 1,668,356
Posted By ST27

From the report: "2 h 10 min 05 , the...

From the report:

"2 h 10 min 05 , the autopilot then auto-thrust disengaged and the PF said "I have the controls"."

"At 2 h 10 min 16, the PNF said "so, we’ve lost the speeds" then "alternate...
Forum: Tech Log
29th May 2011, 19:31
Replies: 3,435
Views: 1,668,356
Posted By ST27

According to the BEA report, the AOA was...

According to the BEA report, the AOA was indicated at 4 degrees as they went over the top. Since this is the primary driver of the stall warning, the warning would likely have shut off, no matter...
Forum: Tech Log
29th May 2011, 18:05
Replies: 3,435
Views: 1,668,356
Posted By ST27

The critical speed is airspeed, not physical...

The critical speed is airspeed, not physical speed over the ground. Consider a simple case where there is a 200 knot tailwind. The result will be a 200 knot variance between the GPS and true...
Forum: Tech Log
29th May 2011, 17:58
Replies: 3,435
Views: 1,668,356
Posted By ST27

You are rushing to judgement, prior to the...

You are rushing to judgement, prior to the release of the final report. Don't let the media spin on things warp your views of what really happened. Nothing so far says that the crew was poorly...
Forum: Tech Log
29th May 2011, 16:54
Replies: 3,435
Views: 1,668,356
Posted By ST27

In this case, the first question that needs to...

In this case, the first question that needs to be answered is why the PF decided to pull the nose up when the aircraft was in otherwise stable flight at the time the autopilot disconnected. That...
Forum: Tech Log
29th May 2011, 15:10
Replies: 3,435
Views: 1,668,356
Posted By ST27

So you've decided to spend the rest of your life...

So you've decided to spend the rest of your life hiding under your bed, since the riskiest part of a flight is the drive to and from the airport, rather than fly on some the safest international...
Forum: Tech Log
27th May 2011, 16:49
Replies: 3,435
Views: 1,668,356
Posted By ST27

The DFDR on newer aircraft records the movement...

The DFDR on newer aircraft records the movement of the individual sidesticks and the physical movement of the elevators all separately, so you can readily see if there is any difference between them....
Forum: Tech Log
20th May 2011, 13:12
Replies: 3,435
Views: 1,668,356
Posted By ST27

AirTran DC-9

There is a summary of the incident on the AOPA site that you might find informative:

AOPA Online: Too Close for Comfort (http://www.aopa.org/asf/asfarticles/2003/sp0306.html)

Not mentioned in...
Forum: Tech Log
20th May 2011, 00:57
Replies: 3,435
Views: 1,668,356
Posted By ST27

Just to be picky, that was NW 705, a B-720, in...

Just to be picky, that was NW 705, a B-720, in 1963, in case anybody was looking for it.
Forum: Tech Log
19th May 2011, 22:44
Replies: 3,435
Views: 1,668,356
Posted By ST27

Yes, that certainly was a major contributor,...

Yes, that certainly was a major contributor, however, encountering the 16,000 fpm updraft in the thunderstorm is what got them in the end. They were flying too close to the edge, otherwise, they...
Forum: Tech Log
19th May 2011, 22:05
Replies: 3,435
Views: 1,668,356
Posted By ST27

There is also the issue of the "contour hole",...

There is also the issue of the "contour hole", where very heavy precip in a cell can result in no radar return, giving the false impression of a hole in the storm. (I'm assuming by shadow you mean...
Forum: Tech Log
19th May 2011, 20:23
Replies: 3,435
Views: 1,668,356
Posted By ST27

2006 was the last one I remember. It was an...

2006 was the last one I remember. It was an TU-154M, on route to St. Petersburg, and cruising at 35,000 feet. The pilot diverted from his direct flight path by 20 miles to avoid a thundercell, but...
Showing results 1 to 23 of 23


 
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