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AirSafety #OTD by Francisco Cunha

@ondisasters.bsky.social
1.4K followers 389 following 11K posts

Author of Book "IDN 1851 - The Santa Maria Air Disaster"; Posts #OTD On This Day Aviation Safety Occurrences (Crashes/Incidents) and other aero miscellanea

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Reposted by AirSafety #OTD by Francisco Cunha
S Currie @seanroofus.bsky.social · 15/11/2025
Gooooood evening ladies and gents, the 2026 calendars are here! we have started our annual sales! Calendars are 25$, shipping in Canada is included! This year we are doing Wood Grain Elevators, and Airplanes! @twittleair.bsky.social @jasonchampton.bsky.social @tmcbphoto.com @yyzbound.bsky.social
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RWA @aviationlibrarian.bsky.social · 04/11/2025
Sad to hear about #UPS2976 N259UP tonight. My thoughts with the families. . N259UP seen during better times when it was with Thai as HS-TME. . #Postcards #Aviation #Avgeek #UPS @ondisasters.bsky.social
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Lefty Retired Airline Pilot @leftyairlinepilot.bsky.social · 03/11/2025
Can you imagine? The Edmund Fitzgerald just disappeared in front of you. Somehow you made it to safety behind the lee of White Fish point and they ask you to go back out…
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Aerossurance @aerossurance.bsky.social · 03/11/2025
#OTD 2011 As the crew did not declare an autoland, ATC allowed another aircraft to depart which interfered with the localiser signal say BFU in a report issued after 85 months. aerossurance.com/safety-manag... #flightsafety #aviationsafety
aerossurance.com
B777 in Autoland Mode Left Runway When Another Aircraft Interfered With the Localiser Signal - Aerossurance
As the crew did not declare an autoland, ATC allowed another aircraft to depart which interfered with the localiser signal.
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Aerossurance @aerossurance.bsky.social · 03/11/2025
...caused by the acceleration of the engine to an abnormally high fan speed which initiated a multiwave, vibratory resonance... reasons for the acceleration and the onset of the destructive vibration could not be determined conclusively."
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Aerossurance @aerossurance.bsky.social · 03/11/2025
#OTD 1973 a no 3 fan disc failure, 1 pax sucked out of window. "...as a result of an interaction between the fan blade tips and the fan case... aviation-safety.net/database/rec... #flightsafety #aviationsafety
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Aerossurance @aerossurance.bsky.social · 03/11/2025
#OTD 2015 an AS365's rotor blades were damaged during start up by a tool left behind from earlier maintenance. We look at the issue of tool control. aerossurance.com/helicopters/... ‎ #toolcontrol #aviationmaintenance #humanfactors #helicopter #flightsafety #aviationsafety
aerossurance.com
Rotor Blade Tool Control FOD Incident - Aerossurance
The ATSB report on how a AS365's rotor blades were damaged during start up by a tool left behind from earlier maintenance. We look at the issue of tool control.
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Rytis @rytisb.bsky.social · 03/11/2025
Boeing remains confident 737 MAX 7 and MAX 10 will be certified in 2026
enginecowl.com
Boeing remains confident 737 MAX 7 and MAX 10 will be certified in 2026
There are over 1,500 unfilled orders for the 737 MAX 7 and 737 MAX 10 combined.
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Aerossurance @aerossurance.bsky.social · 01/11/2025
#OTD 2015: During investigation of a HUMS vibration alert, the main rotor head of an offshore helicopter was examined and wear was identified beyond MM limits. aerossurance.com/helicopters/...
aerossurance.com
HUMS Vibration Health Monitoring Success - Aerossurance
CASA release data on a VHM success on an offshore helicopter in Australia. Non-schedule maintenance, directed by HUMS, identified a degraded MR damper.
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Marty St George @martysg.com · 01/11/2025
Album cover for 3 Dog Night?
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BaA43A3aHY @baa43a3ahy.bsky.social · 01/11/2025
J79 Low Base-Drag Nozzle🧵 I see the J79 & B-58 as being made for each other, even though it might not look as so, when considering that the XJ79 first ran on 8 June 1954, and the XB-58 first flew on 11 November 1956. But the J79 was indeed meant to be, since inception, the B-58's engine.
Convair B-58 Hustler with General Electric J79-GE-5 engines.
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John Wiseman @lemonodor.bsky.social · 01/11/2025
I first started mapping GPS jamming in case it was an early warning of the Russian invasion of Ukraine. I hope it's not a sign of some mad Trumpian attack on Venezuela.
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Stansaid Airport @stansaidairport.bsky.social · 31/10/2025
I see Prince Andrew has been stripped of everything. No change there then.
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Edward Russell @byerussell.com · 31/10/2025
PIT's "petal tunnel" by Luis Vidal emulates something of the experience of emerging from Pittsburgh's Fort Pitt Tunnel. “You come out of the tunnel and, suddenly, you read the entire space. Everything’s there, visible and legible at one glance and that’s part of the beauty of this transformation.”
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RWA @aviationlibrarian.bsky.social · 31/10/2025
They really drew inspiration from the TWA tunnel and the ORD ones.
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Stansaid Airport @stansaidairport.bsky.social · 31/10/2025
As you can imagine, clear communication at an airport is critically important. For example, even a colon can drastically change the meaning of a sentence. 'A pilot ate a Flight Attendant's sandwich.' 'A pilot ate a Flight Attendant's colon.'
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Brian Dunning @briandunning.bsky.social · 31/10/2025
My low-effort Halloween display: a couple of movie lights set up behind my house.
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AirSafety #OTD by Francisco Cunha @ondisasters.bsky.social · 31/10/2025
This description suits the title of a 60s promotional video on this jet - "The Champion of Champions"
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Jon Ostrower @jonostrower.com · 29/10/2025
Use of the Hawaiian callsign and HA code concludes tonight as Alaska moves to a single air operator certificate at 00:01 Hawaiian Time on Oct 29. All the airline’s flights will be Alaska from here on out.
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AirSafety #OTD by Francisco Cunha @ondisasters.bsky.social · 27/10/2025
Man the 70s were wild
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Gander Airport Historical Society @gahsyqx.bsky.social · 25/10/2025
Soviet astronaut Yuri Gagarin (in uniform), the first human to travel into space to orbit the earth, makes the only time he entered North America at Gander 1963. His flight landed for servicing while on his way to Cuba.
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Stephen Schwartz @atomicanalyst.bsky.social · 26/10/2025
Today in 1962 at 4:00 AM PDT, as the Cuban Missile Crisis was entering its most dangerous phase, the Air Force test launched an Atlas D ICBM from Vandenberg Air Force Base, California, as US military forces worldwide were at DEFCON 3 and forces under the Strategic Air Command were at DEFCON 2.
A color ground-level photograph of Vandenberg Air Force Base, showing two silver Atlas D ICBMs next to their respective launch gantries (one in the middleground and one in the background) as a B-52 bomber flies overhead.
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Scott Hamilton @leeham.net · 27/10/2025
Boeing sees no new single aisle plane until 2040 Subscription Required By Scott Hamilton Oct. 27, 2025, © Leeham News: Recent reports that Boeing is working on a new single-aisle aircraft to replace the 737 MAX and a New Midmarket Airplane (NMA), or a version of it, are fundamentally true but…
leehamnews.com
Boeing sees no new single aisle plane until 2040
Subscription Required By Scott Hamilton Oct. 27, 2025, © Leeham News: Recent reports that Boeing is working on a new single-aisle aircraft to replace the 737 MAX and a New Midmarket Airplane (NMA), or a version of it, are fundamentally true but vastly overhyped. At a conference in Prague earlier this month, Boeing's Darren Hulst put a damper on this speculation, but said only that Boeing was "not close" to launching a new airplane.
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Aerossurance @aerossurance.bsky.social · 27/10/2025
#OTD 2019 Wheelchair battery fire in cargo hold www.skybrary.aero/index.php/B7... #flightsafety #aviationsafety
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Stansaid Airport @stansaidairport.bsky.social · 24/10/2025
Fact: The Airbus A220 was the company's first ever passenger glider. Commercially successful, it dominated the market for very, very short flights. Its short haul distance depended entirely on how strong the elastic bands were at launch.
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BaA43A3aHY @baa43a3ahy.bsky.social · 24/10/2025
Tupolev Tu-128 Fiddler. Some random pics.
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AirSafety #OTD by Francisco Cunha @ondisasters.bsky.social · 24/10/2025
From all the crazy looking Soviet jets of the era, the Firebar is on the top 3
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Aerossurance @aerossurance.bsky.social · 24/10/2025
#OTD 2016 A US registered SA227 Merlin IVC surveillance aircraft, chartered by a French ‘government agency’ had a fatal accident in Malta. We unravel the story behind the accident. aerossurance.com/safety-manag... #accident #surveillance #aircraft #flightsafety #aviationsafety
aerossurance.com
Investigation into Secretive Surveillance Aircraft Accident in Malta 24 Oct 2016 - Aerossurance
A US registered SA227 AT Merlin IVC surveillance aircraft, chartered from a Luxembourg company by an unspecified French government agency had a fatal accident in Malta.
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Stansaid Airport @stansaidairport.bsky.social · 23/10/2025
The front landing gear of the 15:35 from Alicante has just hit the runway. Hopefully the rest of the plane will follow soon.
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FreddyB Aviation Photography @freddyb-aviation.bsky.social · 21/10/2025
And Break!! USN Blue Angel 1-4 break up the diamond at the Capital Airshow, Mather Field, California. March 2025 #airshow #capitalairshow #aviation #AvGeek #spotter #USN #BlueAngels #cvvhrn #photography #Nikon #nikonphotgraphy #CCA2025 #Z9
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BaA43A3aHY @baa43a3ahy.bsky.social · 21/10/2025
MiG-23 structural problems 🧵 MiG-23s in the early-mid 1970s were deficient in many regards. An important one of those being combat maneuverability.
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Tim Robinson @raestimr.bsky.social · 21/10/2025
A 'Pilot's pilot', RAF fighter pilot, airline captain and author of one of the greatest books about flying - 'F-4 Phantom - A Pilots Story', Robert Prest is one of our heroes for #BlackHistoryMonth #BHM www.aerosociety.com/news/black-h...
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BaA43A3aHY @baa43a3ahy.bsky.social · 21/10/2025
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Thanos Massias @massiasthanos.bsky.social · 20/10/2025
🧵 The dramatic "Death of an A-20" series of photographs. This Douglas A-20 was downed by Japanese guns over Karas, Dutch New Guinea. A-20G-25 "Bevo" Serial Number 43-9432 Tail V 🔗 pacificwrecks.com/aircraft/a-2...
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Stansaid Airport @stansaidairport.bsky.social · 20/10/2025
Just going to ask Benny from Maintenance to lower the new perimeter fence. No reason.
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Stansaid Airport @stansaidairport.bsky.social · 20/10/2025
I was just thinking about old Bob from our I.T. Department. He left to join Amazon Web Services and it's his first day on the job today!
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Stansaid Airport @stansaidairport.bsky.social · 20/10/2025
A few delays on the Stansaid Express this afternoon. It’s always the same in Autumn, you get the odd branch on the line that needs clearing.
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FreddyB Aviation Photography @freddyb-aviation.bsky.social · 19/10/2025
Lighting up the night! A Mig 19 and a USAF F-35A make a few spectacular evening passes at the Capital Airshow, Mather Field, California June 2024 #airshow #capitalairshow #aviation #AvGeek #spotter #photography #Nikon #nikonphotgraphy #CCA2025 #F35A #Mig19 #cvvhrn #F35 #afterburner
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jacdecnews.bsky.social @jacdecnews.bsky.social · 20/10/2025
All four crewmembers managed to escape via emergency chutes. The aft fuselage of the 747 broke off when it hit the seawall. This accidents represents the - 66th hull loss of a Boeing 747 - 3rd hull loss for ACT / MyCargo - 2nd hull loss at Chek Lap Kok Intl Airport © JACDEC Database
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jacdecnews.bsky.social @jacdecnews.bsky.social · 20/10/2025
2025-10-20: ACT Airlines (on ops for Emirates Cargo) Boeing 747-400F(TC-ACF,*1993) was destroyed during landing runway 07L at Hong Kong-Intl AP(VHHH), China-HK when flight #EK9788 veered to the left, striking the perimeter wall, ending up in the water. Two persons on the ground were fatally injured.
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The Aviation Herald @avherald.com · 20/10/2025
Accident: ACT B744 at Hong Kong on Oct 20th 2025, runway excursion, aircraft broken up in waters #B744 #TC-ACF #EK-9788 avherald.com/h?article=52e9be9f
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Thanos Massias @massiasthanos.bsky.social · 20/10/2025
37 mm Automatic Gun, M4, with its distinctive "arched" magazine, on the stern of a field-modified LVT(A)-2 Amtrac. 🔗 www.secretprojects.co.uk/threads/nava... "WESTWARD IS BATAAN": PARATROOP INVASION Noemfoor Island, Schouten Islands, Dutch New Guinea; 2-4 July 1944" 🎞️📑 catalog.archives.gov/id/17684
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jacdecnews.bsky.social @jacdecnews.bsky.social · 19/10/2025
2025-10-18: Eastern Air Express Boeing 737-400 (N804TJ,*1989) veered off the side of rwy 06 after landing at Ft. Myers AP(KRSW), FL becoming disabled at taxiway A5. All on board were safe. Flt #BBQ2150 from Havana made a go-around some 14 min earlier for unknown reasons. www.wgcu.org/2025-10-18/a...
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Hush-Kit aviation news, history & satire @hushkit.bsky.social · 17/10/2025
Look after your mental well being
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Stansaid Airport @stansaidairport.bsky.social · 17/10/2025
Fact: The Dutch are the tallest race of people on earth. Which gives them a distinct advantage when it comes to aircraft maintenance.
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Hype @hype.aero · 17/10/2025
The Federal Aviation Administration has lifted a 38-aircraft-per-month production cap on Boeing's 737 MAX, authorizing output to rise to 42 jets per month, the FAA and Boeing said Friday. The cap was imposed in January 2024 after a door plug blew out of a nearly new MAX 9. - More on hype.aero
reuters.com
FAA lifts 38-per-month cap, allows Boeing to raise 737 MAX production to 42 planes per month
Boeing can hike 737 MAX production to 42 planes per month after the Federal Aviation Administration lifted a 38 plane-per-month cap that had been in place since January 2024, the agency and planemaker said on Friday.
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One of many.... @shari-in-the-sky.bsky.social · 17/10/2025
For Pete Hegseth…..
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Scott Hamilton @leeham.net · 18/10/2025
Well, week long trip hasn't gone well. 2 hrs delay at ORD for rain in NYC. From there to SEA, where 1st nite at hotel had no heat. Then three accidents on 3 freeways delayed or stopped traffic. Now on 2 hr delay (so far) at SEA for maintenance. Almost certainly will land ORD on "MKE" runway [more]
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BaA43A3aHY @baa43a3ahy.bsky.social · 18/10/2025
Wing sweep mechanism.
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