AirSafety #OTD by Francisco Cunha
@ondisasters.bsky.social
Author of Book "IDN 1851 - The Santa Maria Air Disaster"; Posts #OTD On This Day Aviation Safety Occurrences (Crashes/Incidents) and other aero miscellanea
Reposted by AirSafety #OTD by Francisco Cunha
Sad to hear about #UPS2976 N259UP tonight. My thoughts with the families.
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N259UP seen during better times when it was with Thai as HS-TME.
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#Postcards #Aviation #Avgeek #UPS @ondisasters.bsky.social
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N259UP seen during better times when it was with Thai as HS-TME.
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#Postcards #Aviation #Avgeek #UPS @ondisasters.bsky.social
November 4, 2025 at 11:15 PM
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
.
N259UP seen during better times when it was with Thai as HS-TME.
.
#Postcards #Aviation #Avgeek #UPS @ondisasters.bsky.social
Reposted by AirSafety #OTD by Francisco Cunha
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…
November 3, 2025 at 1:55 AM
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…
Reposted by AirSafety #OTD by Francisco Cunha
#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
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.
aerossurance.com
November 3, 2025 at 7:58 AM
#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
Reposted by AirSafety #OTD by Francisco Cunha
...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."
November 3, 2025 at 7:52 AM
...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."
Reposted by AirSafety #OTD by Francisco Cunha
#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
November 3, 2025 at 7:52 AM
#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
Reposted by AirSafety #OTD by Francisco Cunha
#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
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.
aerossurance.com
November 3, 2025 at 8:29 AM
#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
Reposted by AirSafety #OTD by Francisco Cunha
Boeing remains confident 737 MAX 7 and MAX 10 will be certified in 2026
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.
www.enginecowl.com
November 3, 2025 at 9:24 AM
Boeing remains confident 737 MAX 7 and MAX 10 will be certified in 2026
Reposted by AirSafety #OTD by Francisco Cunha
#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/helicopters/...
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.
aerossurance.com
November 1, 2025 at 3:15 PM
#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/helicopters/...
Reposted by AirSafety #OTD by Francisco Cunha
Album cover for 3 Dog Night?
Dogs are marvelous creatures who bring us great joy. I am constantly trying to be worthy of them.
November 1, 2025 at 3:11 PM
Album cover for 3 Dog Night?
Reposted by AirSafety #OTD by Francisco Cunha
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.
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.
November 1, 2025 at 8:21 PM
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.
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.
Reposted by AirSafety #OTD by Francisco Cunha
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.
Recent GPS interference near Venezuela and Trinidad, per GPSJAM, as noticed by a Bellingcat workshop participant. I believe this is a recent development for the area. CC @lemonodor.bsky.social
November 1, 2025 at 11:07 PM
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.
Reposted by AirSafety #OTD by Francisco Cunha
I see Prince Andrew has been stripped of everything.
No change there then.
No change there then.
October 31, 2025 at 11:27 AM
I see Prince Andrew has been stripped of everything.
No change there then.
No change there then.
Reposted by AirSafety #OTD by Francisco Cunha
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.”
“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.”
Pittsburgh, new landside terminal connector “petal tunnel” (opening 2025), by Gensler, HDR and Luis Vidal + Architects. 📷 @pitairport.bsky.social. #airportarchitecture
byerussell.substack.com/p/pittsburgh...
byerussell.substack.com/p/pittsburgh...
October 31, 2025 at 2:11 PM
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.”
“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.”
Reposted by AirSafety #OTD by Francisco Cunha
They really drew inspiration from the TWA tunnel and the ORD ones.
October 31, 2025 at 7:39 PM
They really drew inspiration from the TWA tunnel and the ORD ones.
Reposted by AirSafety #OTD by Francisco Cunha
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.'
'A pilot ate a Flight Attendant's sandwich.'
'A pilot ate a Flight Attendant's colon.'
October 31, 2025 at 8:14 PM
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.'
'A pilot ate a Flight Attendant's sandwich.'
'A pilot ate a Flight Attendant's colon.'
Reposted by AirSafety #OTD by Francisco Cunha
My low-effort Halloween display: a couple of movie lights set up behind my house.
October 31, 2025 at 5:51 AM
My low-effort Halloween display: a couple of movie lights set up behind my house.
This description suits the title of a 60s promotional video on this jet - "The Champion of Champions"
Convair B-58 Нustlеr 🧵
The B-58 was the most technologically advanced aircraft of its time. A Mach 2 capable, wasp-waisted war chariot, drawn by four J79s, that included silver brazed stainless steel honeycomb sandwich panels in its design.
The B-58 was the most technologically advanced aircraft of its time. A Mach 2 capable, wasp-waisted war chariot, drawn by four J79s, that included silver brazed stainless steel honeycomb sandwich panels in its design.
October 31, 2025 at 11:26 AM
This description suits the title of a 60s promotional video on this jet - "The Champion of Champions"
Reposted by AirSafety #OTD by Francisco Cunha
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.
October 29, 2025 at 5:00 AM
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.
Man the 70s were wild
Because President Nixon had passed out from excessive drinking, this worldwide alert was reportedly called by Secretary of State and National Security Advisor Henry Kissinger and Secretary of Defense James Schlesinger during a hastily-convened late-night White House meeting. bsky.app/profile/atom...
October 27, 2025 at 10:49 AM
Man the 70s were wild
Reposted by AirSafety #OTD by Francisco Cunha
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.
October 25, 2025 at 10:45 AM
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.
Reposted by AirSafety #OTD by Francisco Cunha
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.
October 26, 2025 at 3:12 PM
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.
Reposted by AirSafety #OTD by Francisco Cunha
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…
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…
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.
leehamnews.com
October 27, 2025 at 7:18 AM
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…
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…
Reposted by AirSafety #OTD by Francisco Cunha
#OTD 2019 Wheelchair battery fire in cargo hold www.skybrary.aero/index.php/B7... #flightsafety #aviationsafety
October 27, 2025 at 8:53 AM
#OTD 2019 Wheelchair battery fire in cargo hold www.skybrary.aero/index.php/B7... #flightsafety #aviationsafety
Reposted by AirSafety #OTD by Francisco Cunha
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.
October 24, 2025 at 6:41 PM
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.
Reposted by AirSafety #OTD by Francisco Cunha
Tupolev Tu-128 Fiddler.
Some random pics.
Some random pics.
October 24, 2025 at 10:01 PM
Tupolev Tu-128 Fiddler.
Some random pics.
Some random pics.