🧵1/18 #OTD in 1985: Japan Airlines Flight 123, a B-747 crashes in Gunma (Japan). 4 survivors, 519 dead: worst single-plane disaster ever. Explosive decompression severely damaged tail and hydraulics, severely damaging controls. Cause: improper repairs to bulkhead years prior⬇️


2/18 #Thread Pictures taken by passengers after the sudden decompression. Despite severe damage affecting the jet´s handling, the crew was able to use engine thrust to keep it in the air for 32 mins before the aircraft went down. Story here asahi.com/ajw/articles/1…

1/7 #OTD in 2017: a US Marines KC-130 [165000] crashes in Mississippi (US) all 16 aboard die. Aircraft experienced engine issues at 20.000 ft which lead to #3 propeller assembly impacting fuselage. The shockwave caused an inflight breakup. Inquiry pointed maintenance issues.


2/7 #Thread NBC news report on accident

🧵 1/21 #OTD in 1988: Air France Flight 296, an A320, crashes in Mulhouse (France), 3 of 136 aboard die. On a low pass demo, jet impacted trees. Inquiry blamed pilot actions, but crash raised issues on how pilots dealt with the (then) new Digital Fly By Wire (FBW) control system. 2/21 #Thread Picture update (1) by @aircrashdaily

🧵1/14 Decided to make a roundup of “what´s around” on the Air India Crash. I must add this is, at best “informed speculation” and it might be wrong. And if what I say here turns out right, it will be a coincidence. First, the video⬇️⬇️ 2/14 First, the video: while the definition (both image and sound) isn´t HD, it is certain that the landing gear is down, and that stage, it should have been up. That is all the fact we have for now.

#Thread Many thanks to Mr. Graham Summers, from the FB Group "Aviation Faded Glory" for letting me share this here

"Much has been written on the development of Concorde between the French and British, but not so much on the original designs from Bristol that led to the two countries merging their designs. From the mid 1950s Bristol Aircraft had been looking at various designs to meet the needs of a supersonic airliner. Under the auspices of the Supersonic Transport Committee, Bristol realised it’s first design under the Model 198 designation. This featured a modified M wing.

Following up, the next Bristol 198 design utilised a compound sweeping delta wing. However due to doubts of engine power, eight engines were chosen for this design from 1958. These engines were fitted to the top surface of the wing. The position of the wing was on the shoulders of the fuselage.

Also fitted was a canard foreplane of the so called gothic shape, due to the resemblance to church windows of that design.

A year later, in 1959, the foreplane was dropped, together with two less engines. The wing had changed shape again, and was of the gothic shape.

The final Type 198 design was very close to the configuration used by Concorde. However it still retained six engines, albeit that they were now located below the wing. The wing itself was virtually the Concorde ogival shape.

While Bristol was working on the Type 198, it also looked at a higher performance Mach 3 airliner as well. The Type 223 eventually emerged in 1961, by which time Bristol had been subsumed in the British Aircraft Corporation. However due to concerns over the materials needed to withstand the temperature, this project was dropped.

Despite the eventual cancellation of the Type 223, a model was displayed at the 1961 Paris Air Show. At the same show, French manufacturer Sud-Aviation also displayed a model of its own supersonic airliner, the Super Caravelle. The resemblance between the two designs was obvious, and so the discussion began on a joint effort, which led to Concorde."

Pictures on the thread below... A GA of the first Type 198 configuration

#Thread 1/10 #OTD in 2015: Germanwings Flight 9525, an A320, is deliberately crashed in the French Alps by copilot Andreas Lubitz. All 150 aboard die. Lubitz, who hid psychological problems from his employer, locked himself in the cockpit and put jet onto a controlled descent.


#thread 2/10 BBC report bbc.com/news/world-eur…

#Thread 1/7 in 1994: Aeroflot Flight 593, an A310, crashes in Kemerovo (Russia), all 75 aboard die. Captain seated his 16-y-o son at the controls, who unknowingly disengaged autopilot, which was unnoticed by pilots. This led jet to a bank and dive from which crew were unable to recover.


#Thread 2/7 AP Aftermath Footage

#Thread 1/18 Still on MH370, a different tweet on the issue, with the help of Brian Dunning @BrianDunning from @skeptoid

Earlier this week, Skeptoid Podcast released an episode covering the disappearance of Malaysia Airlines Flight 370. You can hear it here –
youtu.be/nfp9mg7vH9w?si… and please hear it before commenting: it is, as always, a well-presented case...

Continues below ⬇️⬇️⬇️

(a long read, but what would you expect from a jet that´s been missing for 11 years?) #Thread 2/18 To sum it all up, Brian argues that the most likely cause was an onboard fire. The crew attempted to turn back – hence the unexpected “turn maneuver” - and also cut all “non-essential electronics,” – which explains the disabling of all tracking gear. But they were eventually knocked out by the conflagration.

🧵#Thread 1/19 #OTD in 2014: Malaysian Airlines MH 370, a B-777 with 239 aboard, disappears off Penang (Malaysia). Contact was lost some 40 mins after take-off, on the Thailand Gulf. Jet was never found; light debris later surfaced in the Indian Ocean. Cause officially undetermined.


#Thread 2/19 period news report on the disappearance bbc.com/news/world-asi…

🧵#Thread 1/ #OTD in 1989: KLM Flight 867, a B-747, flies through a cloud of volcanic debris over Alaska (US) subsequently losing power from all four engines. Crew is able to restart the engines and land safely in Anchorage, in a similar incident to British Airways Flight 9 in 1982.


2/ NY Times report nytimes.com/1989/12/16/us/…

#Breaking a corporate Bombardier Challenger [N823KD] crashed in Florida (US). So far, no info on possible casualties. First reports state that on approach to Naples airport, crew reported both engines were out, before jet went down on a nearby road. Updates when possible.





#Thread Aftermath video

#OTD in 1988: Lockerbie Bombing (Scotland). Pan Am Flight 103, a B-747 on a transatlantic route, explodes over the town of Lockerbie. All 259 aboard and 11 on the ground die. Attack was traced to Lybian intelligence, in retaliation from US airstrikes on the country in 1986.





#Thread BBC Newsflash on 21st December 1988. I´m sure many of you living in the UK recall seeing this on their TV´s as the first info they got on the accident

#OTD in 1994: TAROM Flight 381, an A310, has severe control issues in Paris (France). Jet landed safely, all 186 unhurt. On approach to Orly, jet entered an uncommanded and sharp climb. It then stalled and fell 4500 ft, crew was able to recover at just 800 ft from the ground. #Thread Enquiry pointed crew actions – approach too fast, CRM, training, others - but due to similar accidents at the time, it raised issues with then-current Airbus pilot/plane interface. Here, animation with CVR recording and amateur footage of incident

#OTD in 2013: Nepal Airlines Flight 555, a DHC-6 Twin Otter has a runway excursion landing in Jomsom (Nepal). All 21 aboard survive, 7 serious injuries. Plane skidded off runway and fell 20 mt/65 ft into a river. Report pointed crew actions (breach of SOP, CRM, others). #Thread Period news report web.archive.org/web/2013052214…

#OTD in 2001: A Turkish AF CN-235M [R086] crashes in Malatya (Turkey). All 34 aboard die. Media reported aircraft was cruising at 17000 feet when it entered an uncontrolled descent and dove into the ground. It remains the deadliest-ever accident involving the CN-235. #ThreadNews report edition.cnn.com/2001/WORLD/eur…

#OTD in 1995: A RAF Nimrod [XW666] ditches in Moray Firth (Scotland), all 6 aboard survive. Aircraft was on routine post-servicing test flight when an engine fire forced crew to ditch. Inquiry concluded “that a sequence of technical difficulties led to the uncontained fire”. #Thread Period news report heraldscotland.com/news/12105586.…

#OTD in 1946: a USAAF B-17 [44-85510] on a transport flight crashes in Fairfax (California, US), 3 of 9 crew die. Investigation pointed aircraft ran out of fuel when pilot was trying to locate Hamilton AFB. Enquiry pointed crew´s “lack of judgment (…) disregard” and others. #Thread ASN Entry aviation-safety.net/wikibase/98367

#NotOTD 31/03/1993: JAL Cargo Flight 46E, a B-747, has in incident over Alaska (US). All 5 aboard unharmed. After departure, jet was at 2000 ft when #2 engine fell from the wing, crew was able to land safely. Inquiry pointed combination of turbulence and pylon fatigue crack. #Thread Period News. Aircraft [N473EV] was owned by Evergreen International Airlines and was performing the flight on behalf of JAL Cargo nytimes.com/1993/10/14/us/…

#OTD in 1985: a private Bell 206 [ZK-HWX] is involved in an incident at Manawahe (New Zealand), the sole pilot aboard survives uninjured. The helicopter was taking part in operations related to the Rally of New Zealand when it rolled after landing on slopping ground. #Thread ASN [@AviationSafety] Entry. The helicopter was operated by Whirl-Wide Helicopters Ltd aviation-safety.net/wikibase/87548

#Ongoing Cargolux Flight CV-6857, a cargo B-747, was involved in an incident yesterday at Findel Airport (Luxembourg), all aboard are unhurt. Turning back after a technical issue, on landing the right main gear broke off before the aircraft came to a stop. Updates when possible. #Thread Picture Update

#OTD in 2017: a Trans-Pacific Learjet 35 [N452DA] crashes in Teterboro (NJ, US), all 2 aboard die. On approach, jet stalled and went of control. Inquiry pointed pilot actions, related to the maneuver, disregard of SOP, inexperience of F/O, Operator and FAA supervisions. #Thread Various CCTV and Dash Cameras showing the aircraft´s final moments