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Spoiler warning on why regulations are written in blood - the checklist debacle that caused one of Canada´s worst aircrashes was OTD, 56 years ago July 6 1970: Air Canada 621, a DC-8, crashes in Toronto (Canada), and all 109 aboard die. After a hard landing, the #4 engine...

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The MD-11 has always had a critical design flaw. It was manageable until someone screwed up. To improve fuel efficiency and range, its horizontal stabilizer was made smaller than those of earlier DC-10 variants. While the design delivered performance benefits, it also reduced the aircraft's natural pitch stability, particularly at slower speeds during approach and landing. To help compensate, the MD-11 relied heavily on computerized stability augmentation systems. Many crews also preferred flying slightly faster approaches, which improved pitch stability but could make the aircraft more challenging to manage during touchdown due to its weight and sensitivity in roll and yaw. These characteristics became evident in several high-profile accidents. In 1997, a FedEx MD-11 arriving at Newark was reportedly operating under the belief that runway length was limited, prompting the crew to aim for an immediate touchdown. The aircraft landed hard, bounced, and became unstable. Instead of executing a go-around, attempts to salvage the landing resulted in another severe impact, collapsing the landing gear and destroying the aircraft in a post-crash fire. All five crew members survived. The accident highlighted a key lesson: when an MD-11 bounced significantly after touchdown, a go-around was often the safest option. That lesson resurfaced in tragic fashion in 2009 at Narita, Japan. During strong and gusty crosswinds, a FedEx MD-11 touched down hard and bounced. Believing the aircraft could still be recovered onto the runway, the crew attempted to continue the landing. The resulting control inputs led to an even harder impact, loss of control, and a crash that destroyed the aircraft and claimed the lives of both pilots. 📹: buybygb

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The name on one of the crew might ring a bell... June 19 1947: Pan Am Flight 121, a Constellation, crash-lands in Mayadine (Syria). 14 of 36 aboard die. In flight, the #1 engine failed due to a mechanical issue. Attempting to divert to an alternate airport, the #2 engine also failed. The crew made a belly landing in the desert, where the aircraft caught fire. Among the survivors was a dead heading 3rd officer named Gene Roddenberry, who would go on to create the iconic science fiction television series “Star Trek”. This was Roddenbery´s 2nd major plane crash, having survived another major accident during his service in the Pacific Theatre, during WW2 Accident description from ASN (One of many period accidents where an engine failure led to a fatal crash. Nowadays, an engine fail is nearly routine and at worst it causes a diversion...) "The Constellation, named "Clipper Eclipse", was cruising at FL185 when the no. 1 prop had to be feathered due to engine problems. The remaining three engines overheated, forcing the crew to reduced power. This resulted in a gradual descent. The crew elected to continue to Istanbul instead of landing at the nearby Habbaniya RAF Station in Iraq. While descending through FL100 a fire broke out in the engine no. 2 nacelle. A rapid descent was started during which the no. 2 engine separated from the wing. With the left wing on fire a belly landing was carried out in the desert. It appeared the no. 1 engine failure was due to a broken exhaust rocker arm on the no.18 cylinder. The no. 2 engine failure was due to a failure of the thrust bearing which in turn resulted in blocking the passage of oil from the propeller feathering motor to the propeller dome. PROBABLE CAUSE: "The Board determines that the probable cause of this accident was a fire which resulted from an attempt to feather the No. 2 propeller after the failure of the No. 2 engine thrust bearing."

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June 6 1989: the colorful 11 tragedy On This Day in 1989: Surinam Airways Flight 764, a DC-8, crashes in Paramaribo (Surinam). 176 of 187 aboard die in the worst air disaster in the country. The victims included several Dutch Surinamese football players, known as the “Colorful 11”- who were taking part in an exhibition match. The accident occurred as, attempting to land under foggy weather, the crew led the aircraft below the MSA – Minimum Sector Altitude – causing the jet to hit a tree near the airport. The investigation was very critical of the crew's actions, who opted to use an unreliable ILS system on the maneuver and did not react to GPWS alarms. Subsequently, the enquiry unearthed severe issues with the crew´s qualifications. The Captain was over the legal age to operate the aircraft, and also his license did not allow flying the DC-8, while the copilot also had some legal issues. The "probable cause" paragraph from the report reads as follows: CAUSE: "The Commission determines: a) That, as a result of the captain's glaring carelessness and recklessness, the aircraft was flown below the published minimum altitudes during the approach and consequently collided with a tree. b) As an underlying factor in the accident was the failure of SLM's operational management to observe the pertinent regulations as well as the procedures prescribed in the SLM Operations Manual concerning qualification and certification during recruitment and employment of the crew members furnished by ACI." The video seen here is an extract from a 1992 Dutch TV special on the accident, which includes a reenactment of the accident. You can see it on YouTube as “TV: Reporter (19920304) - SLM Vliegramp Suriname PY 764 | PY764”

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