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Questions tagged [accident-investigation]

The investigation of aviation accidents or incidents. Questions requesting available factual information are welcome. Questions inviting speculation or opinions are off-topic.

26
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4answers
13k views

Why didn’t the Captain of Cathay Pacific flight 780 shut down engine 1 and land with a more reasonable speed?

In the approach phase, engine 1 of Cathay Pacific flight 780 got stuck at about 70% N1 and it forced the crew to do an overspeed landing (230knots). Why didn't they shut it off by turning the fuel ...
3
votes
1answer
150 views

Who was the US military pilot who crashed his plane and was accused of selling it to the Russians?

There was recently news regarding a story of a former US military pilot who crash landed his plane somewhere in the southwest. He was accused of flying the airplane to Mexico to deliver it to the ...
0
votes
2answers
134 views

What's the exact moment were the spoilers are supposed to be deployed on a A320?

Are they deployed when the levers are pulled back to 'IDLE' or only when pulled back to 'Reverse'? I still can't figure out, 12 years after, why flight TAM JJ3054 crashed into a gas station and a ...
7
votes
1answer
265 views

Are there countries where not all plane crashes are investigated (even if deadly)?

background information I was struck by the news of this deadly plane crash on 20 Dec 2018 which claimed 8 lives and apparently is not investigated as the plane and its potential survivors were not ...
-2
votes
3answers
166 views

Did AF447 cross dangerous weather?

question Did the Air France 447 pilots endanger the passengers by not diverting around but flying straight through the weather system encountered and pictured below ? Or was this a defendable, ...
1
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0answers
133 views

Where can I find official information about a recent crash in Mexico?

I have heard about a helicopter crash involving an Agusta A 109 in Mexico, that seems to be causing some turmoil due to the deaths of a newly-elected governor and her husband. Is there any info about ...
1
vote
1answer
153 views

Can computer imposed inputs be overridden on the Boeing 737-MAX?

During Lion Air Flight 610, a Boeing 737-MAX, it seems that the angle of attack sensors caused the software to believe the aircraft was stalling, thus initiating a nose-down pitch to recover from the (...
7
votes
3answers
447 views

How to find black boxes underwater absent any pinger signals?

If CVR/FDR cannot be seen visually on the seafloor (because covered by a thick layer of mud/sediments) and no pinger signals are detected, how can they be found? Metal detectors? Any other methods? ...
0
votes
1answer
298 views

How to refute this geometrical method to find MH370? [closed]

A geometrical method to find MH370 has been published on the Net (see images below). I am sure it is wrong (because if it were that easy, thousands of people would have had this idea back in 2014). ...
2
votes
1answer
66 views

What do “azimuth window” and “compass switch” refer to in this accident report?

I recently read the accident report on BEA 548, but I'm unsure of some technical terms used on p. 4 of the report (p. 14 of the linked PDF): Apart from the probability that in the particular ...
7
votes
4answers
2k views

Can the autopilot (or stall avoidance system?) of the B737 MAX 8 be overridden by sheer force?

A New York Times article from today about the Lion Air Flight 610 crash claims that in order to control the airplane the pilot could have braced his feet on the dashboard and yanked the yoke, or ...
6
votes
2answers
586 views

What has Airbus done to address the dual input issue?

There have been a couple of fatal incidents involving Airbus aircraft, namely Indonesia AirAsia Flight 8501 and Air France Flight 447, that could have been prevented had the captains orders / input ...
4
votes
1answer
180 views

Does the NTSB ever not follow up a preliminary report?

Two years ago, there was a fatal crash in Fredericksburg, VA in which 6 people died in a Beech 95-B55. For some reason, the story struck me, and I wrote a note to myself to follow up on it. The NTSB ...
5
votes
3answers
251 views

What is the identity of this abandoned, wrecked Sudan Airways airliner?

The other day, I was browsing Twitter, when I came across this picture of an airliner posted by a Sudanese local (thought it was a Boeing 737, but a friend of mine pointed out that it was an Airbus ...
22
votes
3answers
2k views

Can this aircraft wreckage be identified?

I live in Salinas (central coast California) and there’s an old plane wreck (located within the boundaries of Toro Park County Park in a remote section). On a hike yesterday, we located and took some ...
7
votes
1answer
261 views

Why did the propellers not fail to the feathered position in the Atlantic Southeast Airlines Flight 2311 Crash?

In the ASA Flight 2311 crash the failure of a quill resulted in the loss of propeller pitch control. The propellers ended up with a pitch angle of 3 degrees which caused reduced thrust and increased ...
1
vote
1answer
183 views

Are there examples of passengers' Micro SD cards or USB flash drives surviving crashes?

Are there any well-documented cases of Micro SD cards or USB flash drives surviving 100% hull loss crashes? I'm asking about cards held by passengers, not ones that are part of the aircraft's systems.
3
votes
2answers
358 views

Has a scheduled passenger flight ever stalled because of shifting cargo?

Has any scheduled commercial passenger - not cargo - flight ever experienced a stall due to cargo shifting, like the National Airlines Flight 102 did, back in 2013? Please note I am specifically ...
34
votes
6answers
7k views

Why can't the A320's computer-imposed limits be overridden?

Under the investigation section of US Airways Flight 1549, it is noted that [The pilot] asserted that insufficient credit was given to the A320's fly-by-wire design, by which the pilot uses a side-...
2
votes
3answers
412 views

Why not increase the number of Flight Data Recorders and add jettisoning capability?

With some Flight Data Recorders gone unrecoverable during crashes , what's the argument for not changing their locations, like wings or engines? Given their utility after accidents, why not increase ...
22
votes
1answer
3k views

Why do chunks of aircraft debris float?

In reading about various theories of what happened to flight MH370, there's a lot of discussion about it possibly crashing into the ocean, breaking up, and pieces of the aircraft floating hundreds of ...
0
votes
0answers
66 views

a plane crashed, which one was it? [duplicate]

Hey so I watched a documentary a while ago probably like seconds to disaster or air crash investigation. Anyway I remember seeing at least a year and a bit ago a crash where the following happened. I ...
2
votes
1answer
267 views

Can someone identify this crash?

I watched an episode of Air Crash Investigation or something else a while ago, I want to know which one this was: What I know is that during takeoff, the aircraft received a warning saying some part ...
5
votes
1answer
203 views

Did Hamilton Sundstrand Corporation fix this GPWS problem?

So I was reading about Garuda Indonesia Flight 152 and one of the reason it crashed was for a GPWS malfunction. Here is the Wikipedia article about the crash and GPWS: Garuda Indonesia Flight 152 ...
1
vote
1answer
53 views

Any script to plot multi axis FDR / flight-test data (such as the ones used in air crash investigation)?

I am looking for a script or tool to create flight test and/or FDR plots with several vertical axis, such as the ones used in aircraft accident investigations. Does anyone have any hint on a MATLAB ...
1
vote
1answer
140 views

If an accident were to occur at a cross-border airport, who would investigate?

In the Wikipedia article Canada–United States border, there are several airports mentioned where the airport straddles the US-Canada border, in some cases the runway even being partially in the United ...
21
votes
3answers
10k views

How could the Helios 522 passengers have survived so long without oxygen?

I've noticed some strange inconsistencies regarding the documentation of Helios Airways Flight 522. So first: Autopsies on the crash victims showed that all were alive at the time of impact But ...
2
votes
1answer
764 views

Why doesn't the black box also record video? [duplicate]

Why does the black box still only record the cockpit's audio today, rather than also recording video of the cockpit? Wouldn't a video of the pilots' actions and what they were seeing outside the plane ...
11
votes
1answer
294 views

Why was the FDR of flight ET409 extracted from ocean transported dry instead of in water?

I was more than sure that FDR (as good as any other electronic device including magnetic strip, i.e. HDD), after sitting for a few days under the sea or ocean, must unconditionally be transported wet (...
0
votes
4answers
466 views

How come nobody survived Air Moorea 1121, yet other people have survived crashes from altitudes more than 90x higher?

Air Moorea 1121 crashed from no more than 400 feet, yet people have survived far more awful disasters, such as UA232 or JAL123.
5
votes
0answers
105 views

Where can I find a worldwide General Aviation incident/accident ocurrence reports database?

I enjoy reading reports about aviation incidents and accidents. There are often interesting technical details and I believe that this practice increases the safety of my flights. To keep up to date I ...
6
votes
1answer
572 views

Was John F. Kennedy Jr.’s accident airplane equipped with an autopilot?

JFK Jr.’s crash was attributed to failure to maintain control due to spatial disorientation. Could this be explained by his Piper Saratoga N9253N having no autopilot?
-3
votes
1answer
250 views

Why do ATC displays use flight data sent by the aircraft they are tracking?

Why does ATC use data coming from an aircraft itself instead of using the readings from the airport radar? Also could Aeroperú 603 have been saved if the pilots had ignored the pitot static altitude ...
4
votes
2answers
554 views

Is it standard procedure to unlatch the cockpit door before an emergency landing in a small aircraft?

I was watching an Air Safety Institute video called "Real Pilot Story: Cemetery Crash – A near-death experience with valuable lessons for all pilots." It discusses a situation where a 1958 Bonanza ...
11
votes
1answer
346 views

Could a larger consumer drone “take down” a passenger plane?

As a frequent flier, I'm just concerned about my own safety. Could a larger consumer drone, such as DJI Inspire, (intentionally) "take down" a passenger plane? When I say take down I mean causing ...
70
votes
7answers
15k views

What do aircraft accident investigators do in between incidents?

Consider aircraft accident investigators in your average first- or second-world nation. Something like the US NTSB, the French BEA, the Canadian TSB, the Australian TSB, ... (whichever you happen to ...
15
votes
2answers
562 views

Do aircraft manufacturers like Airbus or Boeing charge the airline, when they assist in aircraft accident investigations?

Most of the time, when an aircraft crashes or has an accident, the manufacturer also assists in the investigation. Is this a pro-bono kind of effort on part of the manufacturers, or do they charge the ...
11
votes
3answers
3k views

What were the safety recommendations following the Aeroperú Flight 603 crash?

I just watched the Mayday Air Crash Investigation about Aeroperú Flight 603 and two questions that weren't answered are: Who was responsible What caused the ATC to relay false altitude information to ...
5
votes
1answer
400 views

How did a Soviet SA-3 missile manage to shoot down the F117 Nighthawk?

This question is about the F-117A that was shot down in 1999. How did an obsolete missile like the SA-3 shoot down such an advanced aircraft for its time? This question has nothing to do with how ...
1
vote
1answer
201 views

What are “ground-based navigation systems which provide vertical guidance” and how do they compare to altimeters?

I am a total layman when it comes to aviation but for a school presentation I am trying to understand the reasons why Air Canada 624 crashed while trying to land on runway 05 at Halifax (CYHZ). I have ...
1
vote
0answers
86 views

External recordable CCTV, a third black box [duplicate]

I wonder if aircraft, and especially large commercial ones, should be fitted with external recordable CCTV. This would enable the crew to perform visual pre-flight checks from the cabin that would not ...
2
votes
1answer
152 views

Could some kind of impact absorbing gels be introduced into the aircraft fuselage, to minimize impact damage on passengers & cargo?

There are a lot of impact absorbing gels, one example here. Could some kind of more advanced gel be introduced into aircraft cabins, which expand rapidly on impact (like air bags) and fill the entire ...
16
votes
1answer
1k views

Which commuter flight was forced to land in a cornfield in '96 or '97?

Last night a friend's wife was describing her experience as a child being on a flight that encountered a flock of Canadian geese, where at least one engine was lost to a bird strike. I suspect both ...
3
votes
1answer
438 views

What is the best method for an emergency takeoff?

(YouTube) Before the collision at Tenerife the pilot of KLM Flight 4805 caused a 22-meter (72-foot) tail-strike by rotating early (I can't say that I blame him given the circumstances). Is dragging ...
6
votes
1answer
3k views

How did the Thrust Reverser Deploy in Lauda Air Flight 004 crash?

How did the electronically controlled thrust reverser in Lauda Air Flight 004 (which crashed) get deployed in mid air without the pilot command. Was there a fault in the electronic controller, a ...
11
votes
1answer
1k views

What exactly are “suitcase handles” in a cockpit?

I was watching Seconds From Disaster about Alaska Airlines 261 (the one with the vertical stabilizer issue) and at one point the copilot tells the pilot to "try the suitcase handles". Is that pilot ...
0
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1answer
1k views

Why did LaMia flight 2933 plan a flight longer than its listed fuel range? [closed]

According to the wiki, the range of the airplane used in the LMI 2933 flight has a range of 1600 miles. The distance between the airports though is 1605 miles though. I presume the exact range varies ...
6
votes
2answers
219 views

What is the reason for the sudden increase of French published accident and incident investigation reports in 1997?

The number of accidents and incident reports available online at BEA has changed dramatically between 1996 and 1997: There was an average of 2 reports per year until 1996, and an average of about 125 ...
14
votes
3answers
1k views

Are aviation accident investigation reports always made public?

How is the dissemination of aviation accident investigation reports regulated? Are the reports public by default, or can they be kept secret? Are there any known rules on this? If the reports are ...
6
votes
1answer
304 views

How does EMAS reduce damage in case of an aircraft overrun?

I saw a report about Mike Pence's plane overrun today on Twitter link: Mike Pence plane overrun photo on Twitter. As can be seen there is huge cracks and breaking of the runway but the plane was ...