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Iran crash: Ukrainian passenger plane crashes with 170 on board

bbc.co.uk

31–40 of 220 posts

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#31
There are suspicious smaller holes near portholes of the aircraft debris.

Could it be shrapnel? This is the basic principle of how anti-air systems damage the aircraft engines.

The smaller holes also might be caused by explosion during the ground impact though.

This is going to be the hell of an investigation given the current tensions in the region.

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#32
post #24

A three year old Boeing 737-800, which does not have any known safety issues. It feels deeply implausible that this airplane would simply crash due to mechanical issues two minutes after taking off from Tehran just hours after Iran retaliated against the United States's assassination of General Qassem Soleimani, but then again there was also an earthquake in Iran just a few hours ago, so I guess maybe these things ju…

It’s already been reported that it was accidentally shot down.

Do you have a source?

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#33

Note: while this is a 737-800, it is NOT the 800-MAX Version that was in the headlines for the last few months.

Also, the failure mode of the 737-MAX thus far did not have it fall from the sky in flames - assuming that the video which purportedly shows the plane doing just that is a true depiction of the event. Furthermore it seems unlikely for a 3 year old plane to be affected by the 'pickle fork' problems (where cracks have been reported in the wing attachment assembly on older planes) reported in this series.

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#34
post #23

Earlier quoted context omitted.

It'll be a very easy investigation: "pilot error". This way there's no need to dig any deeper.

Is there actually any kind of believable “pilot error” that can cause a passenger 737-800 to catch fire in the air and crash?

Hitting another aircraft. See the psa flight that went down in San Diego years ago, they even have a few pictures of it after the hit and mid air fire.

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#35
post #18
post #12

(Edit: We don't know what caused this incident. Speculation follows. It's best to not form conclusions until the experts examine the evidence.) It looks like it was shot down with an air defense missile. You can see the plane on fire as it falls to the earth. Video taken during the crash, the plane is clearly engulfed in flames: https://mobile.twitter.com/isna_farsi/status/121475622529397... Video of the aftermath /…

Hard to be conclusive with that video. Iran's own state media says the engine was on fire. Not necessarily contradicted by the video. https://en.irna.ir/news/83625750/147-Iranians-32-foreigners-...

Pilot should be able to communicate even if engine is on fire (especially then). Transponder doesn't suddenly stop working if your engine erupts in flames.

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#36

It’s being reported there was an “engine failure”. I’d assume that engine failure and fire detection systems are pretty good, not to mention that pilots train on engine fires/failure and single engine procedures regularly. Are there situations where pulling the fire handle to extinguish a fire or shutting down an engine wouldn’t be adequate to alleviate some sort of grave failure?

If the turbine disk disintegrates, it's liable to slice through the entire width of the airplane. This can sever all sorts of connections -- there have been crashes due to this in the past.

It's an unlikely thing to happen today, or ever, but it would certainly account for the rapid crash.

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#37
post #2

Not related to the Iran-US conflict, it seems.

There was been zero independent investigation yet from the aircraft manufacturer, a reputable aviation agency and/or the carrier. Iran declaring it a "technical defect" after just a few hours is not enough to rule out a accidental missile shoot or similar.

Occam's Razor

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#38

This will be a difficult investigation. As we have seen with other Boeing crashes, Boeing will blame everyone else before admitting anything. Iran for sure won't admit it if they shot it down by mistake and if the US shot it down they wouldn't admit it either.

This was a 737-800. The first ones entered service in 1998 and around 5000 of them have been delivered since then. Comparing this aircraft to the 737 MAX is stupid.

My take away from the whole 737 MAX incidents is that the technical shortcomings on the 737 MAX is from Boeing's gross mismanagement and too close relationship with the FAA. It was all profits over safety and regulations. Can you really guarantee that this has not affected other aircraft or their maintenance?

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#39

Happening hours after Iran's strike against bases in Iraq raises the obvious question: is this in any way related to the strikes or a coincidence? I'm guessing it'll be at least a few months before we hear about the why but I wonder if there will be additional focus on it due to the recent tensions.

I won't point fingers at anyone, but: - A 3-year old 737 operated by a reputable airline does not just turn into a huge fireball mid-air and crash like a rock like we see it in the video: https://youtu.be/xRc31DTStwA - It just doesn't happen. - Iran declaring it a "technical error" just hours after the crash is dubious/untrustworthy to say the least. We need a indepedend aviation agency to look at the case, investiga…

I will—-Iran has a history of supporting terrorist groups and activities, and this is no different...

Re: Iran crash: Ukrainian passenger plane crashes with 170 on board

#40

PPRuNe’s my go-to for information on these sorts of things but please note the posts can come pretty quickly without much verification. https://www.pprune.org/rumours-news/628650-ukrainian-aircraf...

Indeed, this does not look like good content to me as many of the post do not quote their sources: “report says...” It is better on the long term ? Do you find solid information ?
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