Search found 56 matches

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by SimonL
Mon Jan 27, 2020 7:12 pm
Forum: Military Aviation & Space Flight
Topic: USAF E-11A plane crash in Afghanistan
Replies: 97
Views: 19613

Re: USAF E-11A plane crash in Afghanistan

The wreckage doesnt seem to have been hit by anything. A SAM in this case would have been heat seeking but nothing on the engine suggest that they was hit by a missile.

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by SimonL
Mon Jan 27, 2020 1:57 pm
Forum: Military Aviation & Space Flight
Topic: USAF E-11A plane crash in Afghanistan
Replies: 97
Views: 19613

Re: Reports of plane crash in Afghanistan

Well somebody is going to speculate that this is Iranian revenge so it may as well be me. Makes some sense, Afghanistan was one theatre mentioned where a revenge attack could take place. Has the advantage of not being a direct attack from Iranian soil so won't trigger a war. Of course that is only ...

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by SimonL
Sun Jan 19, 2020 11:51 am
Forum: Civil Aviation
Topic: Ethiopian B737 opens cockpit window in flight, twice, to clear debris from windshield
Replies: 57
Views: 15712

Re: Ethiopian B737 opens cockpit window in flight, twice, to clear debris from windshield

The video shows that they had absolutely no visibility at all. Even though it is risky to clean the windshield in flight there arent many options. A landing with zero visibility is even more risky.

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by SimonL
Fri Jan 17, 2020 11:42 am
Forum: Civil Aviation
Topic: A DL 772, Flying LAX-PVG, Makes Emergency Landing And Dumps Fuel On School
Replies: 565
Views: 56629

Re: A DL 772, Flying LAX-PVG, Makes Emergency Landing And Dumps Fuel On School

I havent done any deeper analyze of the situation but I've hard to see why the fuel dump was necessary, as stated by others the emergency wasn't extraordinary, and the plane is certified to fly across the oceans which means that an engine failure halfway across is still safe enough. So this could ha...

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by SimonL
Thu Jan 09, 2020 12:49 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

A twitter account @TombStoneWyatt tweeted this: Our military shooting down the missiles from Iran last night ! Our technology is like Star Wars compared to flint stones when it comes US to Iran !!! Watch electronic 50 rounds per minute gunnery take them down as they come ! RTed if U like #TornadoTr...

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by SimonL
Thu Jan 09, 2020 11:57 am
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

I have seen people talk about a possible drone collision, which would also be a plausible theory. A collision with a larger drone could be violent enough bring the plane down..

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by SimonL
Wed Jan 08, 2020 9:03 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

Guys, are you sure about the SA-15? If indeed that warhead is designed to cut the target in half, it doesn't really fit with what we are seeing here. Instead the French Crotale (or a copy of it) would fit the profile, it's smaller in size (would fit the nosecone in the picture better - IF the pictu...

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by SimonL
Wed Jan 08, 2020 8:09 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

Reuters reporting that Western intelligence agencies see no signs Ukraine airliner was shot down, according to a Canadian security source https://www.reuters.com/article/iran-crash-canada-intelligence/western-intelligence-agencies-see-no-signs-ukraine-airliner-was-shot-down-canadian-source-idUSL1N2...

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by SimonL
Wed Jan 08, 2020 7:37 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

Someone on Twiiter posted a picture of a Surface-to-air missile wreck, claiming it was taken from the crash site. Reverse search did not find any other similar images that were previously posted, so the image may be recent, but it has not yet been confirmed that it was taken near the crash site. ht...

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by SimonL
Wed Jan 08, 2020 3:23 pm
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

The black boxes are located in the tail so its possible that they flipped the fin in order to search for them, or for human remains.

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by SimonL
Wed Jan 08, 2020 11:33 am
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

An accidental downing of an airliner has happen before so it wont be that unlikely that some nervous guy at the air defense made a bad decision. And its seems more likely than a mechanical failure. But we cannot know for sure. Hopefully there will come out enough information to solve the puzzle.

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by SimonL
Wed Jan 08, 2020 11:23 am
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

Iran has no obligation to hand over the black boxes to Boeing, or anyone else, they are in charge of the investigation.
However, given the situation, its unlikely that this will be an open investigation regardless of the cause.

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by SimonL
Wed Jan 08, 2020 10:42 am
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

Iran would not deliberately shoot down a plane to hurt Boeing.

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by SimonL
Wed Jan 08, 2020 9:32 am
Forum: Civil Aviation
Topic: Iran admits to accidentally shooting down Ukraine Flight 752
Replies: 2719
Views: 293210

Re: Reports of Ukrainian 737 Crash in Tehran,Iran

There is always a possibility of shrapnel passing through parts of the aircraft and thus also makes an exit hole. It's always hard to speculate but imo the biggest indicator for a missile hit is the location of the shrapnel holes. An engine failure only produces shrapnel in a quite narrow cone perpe...

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by SimonL
Sun Dec 15, 2019 2:32 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q4 2019, Production suspended
Replies: 5670
Views: 738864

Re: Boeing 737MAX Grounded Worldwide Q4 2019

ET crew flipped the switches after the 2nd time MCAS was activated. So they correctly identified the issue and performed the correct action to counter it. But they wherent aware of the fact that they couldnt manually trim the plane and thats where things went really bad. The message was pretty much ...

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by SimonL
Sun Sep 22, 2019 8:06 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 662800

Re: Boeing 737MAX Grounded Worldwide Q3 2019

ET pilots disabled MCAS after the 2nd time it was activated. So apparently they we're very well aware of what was going on and what to do. But since they during that time lost control over the air speed, which is understandable since they where surrounded by mountains and with the GPWS activated. Th...

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by SimonL
Sat Sep 07, 2019 1:12 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 662800

Re: Boeing 737MAX Grounded Worldwide Q3 2019

As a European im not really surprised by the reaction from EASA. They havent shown that much of concern for the aviation industry and havent hesitated in adding more regulations in the name of safety. Even the slightest rumor that the FAA havent been in full control of the certification process prob...

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by SimonL
Sat Apr 13, 2019 4:47 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Newbie question here. I checked on google, trying to understand the purpose of trimming vs the nose-heavy nature of the 737 MAX. Why just pulling on the yoke wouldn't raise the nose via rear elevators? Sorry, it must be obvious for the pros. Trimming has the purpose of balance the downward force of...

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by SimonL
Sat Apr 13, 2019 1:54 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I read Björns report. I am still trying to understand why they did not back off the thrust at some point. If I understand correctly the building IAS with its increasing aerodynamic loads narrowed the envelope more and more to where - manual trim (spinning the wheel) became increasingly difficult to...

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by SimonL
Sat Apr 13, 2019 7:41 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

The short answer to that is: It doesnt work that way.

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by SimonL
Fri Apr 12, 2019 6:25 pm
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6476
Views: 745340

Re: B737MAX Grounded Worldwide

Im bit curious on how they found out that a 2.5 degree nose down trim would make the MAX feels exactly like a NG. The effect of the trim is greatly dependent on speed so the way MCAS works it is only in a narrow corner of the envelope that it will work as intended. Given the fact that they use such ...

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by SimonL
Thu Apr 11, 2019 9:23 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Pretty much all the excessive speed where built up when MCAS was active. The crew where sitting in a plane that now not only have a constantly shaking stick but the plane also pushed itself down and they where so low that the GPWS gave the multiple warnings. There is no airline pilot in the world th...

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by SimonL
Mon Apr 08, 2019 6:57 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

A brief word on "out of trim dive characteristics" ... EASA 737 Type Certificate; section B-05/MAX... Wow. If I'm reading this right (not guaranteed!), this is really serious isn't it? Here is a link to the EASA document in question (page 15 of 114): EASA TCDS for 737 MAX . It seems to sa...

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by SimonL
Sat Apr 06, 2019 4:51 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Based on the preliminary report i would say that yes - they used the wheel. What do you see in the report that makes you think that? I dont see it. I coulda missed it. Do you agree thats plausable? Ive never heard of the trim wheel not working. Though it isnt used much. When they captain asks if th...

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by SimonL
Sat Apr 06, 2019 3:33 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I think people are putting too much on one spot or another. There seems to be a lot going on here. I am a 737 typed pilot with 15000 hrs, i just want to highlight one possible scenario. The people saying the manual trim didnt work... Do we know that they tried the trim wheel? Im not blaming lack of...

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by SimonL
Sat Apr 06, 2019 1:49 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

We should also be able to end the debate of "why didnt they lower the flaps?" The FDR data shows that by the time they realized that it was an MCAS issue they where already too fast..

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by SimonL
Sat Apr 06, 2019 1:36 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

The initial GPWS warnings is probably a reason to why they didnt reduced power.

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by SimonL
Sat Apr 06, 2019 12:44 pm
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6476
Views: 745340

Re: B737MAX Grounded Worldwide

It would also be interesting to see whats happen whit the trim issues in general. Apparently EASA had concerns about the electrical trim in certain parts of the envelope. And if it now turns out that the manual trim also are insufficient in the same regions. Then we will have a really big issue.

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by SimonL
Sat Apr 06, 2019 12:19 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

1) it was not in any established procedure to do so. And as all pilots they stick to the procedures before starting to improvise. 2) Probably because they felt that they had the situation under control and as others have stated, its hard to judge how far off in trim you are without releasing the yok...

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by SimonL
Sat Apr 06, 2019 12:07 pm
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6476
Views: 745340

Re: B737MAX Grounded Worldwide

My feeling is more and more that the MCAS software was designed almost like an engineer student lab. "design a system that trim the nose down if the AOA is too high". It doesnt seems to have any "what if?" in it. It doesnt take into account sensor failures even if the readings ar...

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by SimonL
Sat Apr 06, 2019 11:35 am
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6476
Views: 745340

Re: B737MAX Grounded Worldwide

I disagree. You should do it even if you are close to the ground. Because otherwise you will make it even worse. If you are really stalling at low altitude the only thing you can do is to push the stick down and try to control the impact. If you dont do that you will in most cases enter a spin and i...

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by SimonL
Fri Apr 05, 2019 7:52 pm
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6476
Views: 745340

Re: B737MAX Grounded Worldwide

I guess that i depends on how nitty you want to be, for all practical reasons (flying) AOA is the relevant thing.

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by SimonL
Fri Apr 05, 2019 6:56 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobiq

No I’m not. Sully and his crew made the absolute best decision and the outcome proves he was correct. Often the difference between a good decision and bad decision is outcome. I do not believe sully could have made any other successful decision that he did with the circumstances he was dealt. I sti...

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by SimonL
Fri Apr 05, 2019 6:07 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

A bit OT but i looked at the requirements Ethiopian have on external pilots when recruiting. For a NG captain: Must hold a current and valid JAA/FAA or ICAO ATPL/CPL A current 737 NG type rating Minimum Flight time 3500 hours jet time 2500 hours Pilot in command on jet aircraft Command time in exces...

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by SimonL
Fri Apr 05, 2019 5:53 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I have stated this before but no one has discussed.....if I was in the ET cockpit...and I had considered this before the ET crash after learning from the lion accident.....I would have lowered flaps to disable the MCAS while still allowing use of the electric trim. Thoughts? You would tear off the ...

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by SimonL
Fri Apr 05, 2019 3:57 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Some speculation: Once they had realized that manual trim wasnt working they might have thought that starting all over would be the best option, turning on the switches and use the electrical trim to balance the plane and then kill the switches again. Maybe they thought that they could counter the M...

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by SimonL
Fri Apr 05, 2019 3:32 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Sure, but there are strong indications that in the ET accident things (manual pitch trim) stopped working even within the flight envelope. No, the evidence doesn't tell us that. You're taking a guess, possibly because it fits your conclusion. I would say that there are, based on previous posts, ind...

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by SimonL
Fri Apr 05, 2019 11:07 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Since he went through Ethiopians own pilot academy he probably started to train on airliners as soon as he could. I suspect that he also had some hours of simulator training as a part of his education.

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by SimonL
Fri Apr 05, 2019 9:30 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Shouldn't the pilot trim the stabilizer manually at that point using the trim wheels? Isn't that exactly the intent of tripping the switches OFF? Was there an issue with the trim wheel too? I am confused. I think that happened when the pilots had executed the prescribed procedures several times &am...

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by SimonL
Wed Apr 03, 2019 9:08 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

The "Proper" strategy to get out of the trap is (now) known. counter MCAS introduced miss trim with manual switches once in one go and then deactivate trim hard. Unfortunately that strategy does not yet fully resolve all possible cases: The thumb switches also lack the authority to trim t...

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by SimonL
Wed Apr 03, 2019 5:53 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

From what ive read the pilots seems to have done what they could. MCAS was activated and after the 2nd time they cut the switches, which seems quite normal. They correctly identified the issue and used the correct procedure to handle it. But now they where left with a misstrimmed aircraft they could...

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by SimonL
Wed Apr 03, 2019 10:25 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Another bit of info: MCAS was re-engaged 4 times after the ET302 pilots turned it off. Boeing anti-stall software on a doomed Ethiopian Airlines jet re-engaged as many as four times after the crew initially turned it off due to suspect data from an airflow sensor, two people familiar with the matte...

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by SimonL
Fri Mar 15, 2019 2:18 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

As said: With all the attention the MCAS has been given after the Lion Air crash the crew must have been very well aware of it and it was most likely the first that came to their mind. Thats how humans work, with too much attention on a specific issue it might even happen that other issues are inter...

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by SimonL
Fri Mar 15, 2019 1:43 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Also, everyone claims pilots need to flip two cut-off switches and they are good. Did anyone test this theory with MAX/MCAS (or) just based on runaway stab procedures? The Lion Air crew prior to the accident flight tested this procedure and it worked as advertised. But we still dont know if the pil...

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by SimonL
Thu Mar 14, 2019 2:39 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

I can do the same thing in Sweden. Apply for the ATPL program and ~3 years later i will be qualified to fly airliners and i will not have much more than 200 hours.

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by SimonL
Thu Mar 14, 2019 2:07 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Well.... in order to gain 8000 hours you have to pass 200... And having a guy flying 1000 hour GA and doing his training on his own is not necessary safer than having the airline taking a guy with 0 hours and train him from the beginning. But yes of course, an experienced pilot is often better than ...

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by SimonL
Thu Mar 14, 2019 9:14 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

What I don't get here ... and perhaps someone has an explanation for me... If this is the same MCAS error as on the Lion Air flight, why didn't the pilots use the runaway trim cutout switches (or whatever is the actual term)? From my view as an outsider the whole things looks like this: 1) MCAS is ...

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by SimonL
Wed Mar 13, 2019 6:47 pm
Forum: Civil Aviation
Topic: B737MAX Grounded Worldwide Q1 2019
Replies: 6476
Views: 745340

Re: Should airline regulators consider grounding B737 MAX series

Would be a bit strange if it's the President and not the FAA that grounds them. Doesnt look very professional..

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by SimonL
Wed Mar 13, 2019 6:39 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

And there is a reason that Ethiopian havent seen any major terrorist attack like Kenya and a lot of other E African countries. Their security service is no joke..

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by SimonL
Wed Mar 13, 2019 8:29 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 742657

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Have the plane crashed in Sweden the black boxes also would have been sent to England for analysis. It can be so simple that Ethiopia has an agreement with the UK to do the analysis in case of a crash..

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