SHAHEDSHAHR, Iran — A Ukrainian airliner carrying 176 people crashed on the outskirts of Tehran during a takeoff attempt Wednesday hours after Iran launched its missile attack on U.S. forces, scattering flaming debris and passengers’ belongings across farmland and killing everyone on board.

The Iranian military disputed any suggestion the plane had been blown out of the sky by a missile, and Iranian aviation authorities said they suspected a mechanical problem brought down the 3½-year-old Boeing 737. Ukrainian officials initially agreed but later backed away and declined to offer a cause while the investigation is going on.
The Ukraine International Airlines jet was en route to the Ukrainian capital of Kyiv with 167 passengers and nine crew members from several countries, authorities said. Ukraine Foreign Minister Vadym Prystaiko said they included 82 Iranians, 63 Canadians and 11 Ukrainians.
Many of the passengers were believed to Iranian Canadians or international students making their way to Kyiv or, beyond that, to Toronto after visiting with family during the winter break. The manifest included several teenagers and children, some as young as 1 or 2.
Ukraine’s President Volodymyr Zelenskiy cut short a visit to Oman to return to Kyiv and said a team of Ukrainian experts would fly to Tehran to help investigate the crash.
“Our priority is to find the truth and everyone responsible for the tragedy,” Zelenskiy wrote in a Facebook statement.
In Canada, where the crash ranked among the worst losses of life for Canadians in an aviation disaster, Prime Minister Justin Trudeau said the country is “shocked and saddened,” and he vowed the government will work to “ensure that this crash is thoroughly investigated and that Canadians’ questions are answered.”

The Pilot Apparently Couldn’t Communicate With Air-Traffic Controllers in Tehran

Major world airlines Wednesday rerouted flights crossing the Middle East to avoid danger amid escalating tensions between the U.S. and Iran, and the U.S. Federal Aviation Administration barred American flights from certain Persian Gulf airspace, warning of the “potential for miscalculation or misidentification” of civilian aircraft.
The plane had been delayed from taking off from Tehran’s Imam Khomeini International Airport by almost an hour. It never made it above 8,000 feet, crashing just minutes after takeoff, according to data from the flight-tracking website FlightRadar24.
Qassem Biniaz, a spokesman for Iran’s Road and Transportation Ministry, said it appeared a fire erupted in one of its engines and the pilot lost control of the plane, according to the state-run IRNA news agency. The news report did not explain how Iranian authorities knew that.
The pilot apparently couldn’t communicate with air-traffic controllers in Tehran in the last moments of the flight, according to Hassan Razaeifar, the head of the air crash investigation committee. He did not elaborate.
Ukraine International Airlines President Yevhen Dykhne, said the aircraft “was one of the best planes we had, with an amazing, reliable crew.” In a statement, the airline went further, saying: “Given the crew’s experience, error probability is minimal. We do not even consider such a chance.”
Gen. Abolfazl Shekarchi, the spokesman of the Iranian armed forces, was quoted by the semiofficial Fars news agency as denying the plane has been brought down by a missile.

The Ukrainian Plane Slammed Into the Ground Near the Town of Shahedshahr

“The rumors about the plane are completely false and no military or political expert has confirmed it,” he said. He said the rumors were “psychological warfare” by the government’s opponents.
Authorities said they found the plane’s so-called black boxes, which record cockpit conversations and instrument data.
In 1988, a U.S. Navy cruiser mistakenly shot down an Iranian passenger jet over the Persian Gulf, killing 290 people. Earlier this week, Iranian President Hassan Rouhani referred to that episode in responding to President Donald Trump’s threat to attack 52 targets in Iran.
“Those who refer to the number 52 should also remember the number 290,” Rouhani tweeted. “Never threaten the Iranian nation.”
The Ukrainian plane, fully loaded with fuel for its 1,430-mile flight, slammed into the ground near the town of Shahedshahr, causing fires that lit up the darkened fields before dawn.
Din Mohammad Qassemi said he had been watching the news about the Iranian missile attack on U.S. troops in Iraq in revenge for the killing of Gen. Qassem Soleimani when he heard the crash.
“I heard a massive explosion and all the houses started to shake. There was fire everywhere,” he said. “At first I thought (the Americans) have hit here with missiles and went in the basement as a shelter. After a while, I went out and saw a plane has crashed over there. Body parts were lying around everywhere.”

A Number of 737-800 Aircraft Have Been Involved in Deadly Accidents Over the Years

The crash left a wide field of field of debris scattered across farmland, the dead lying among shattered pieces of the aircraft. Their possessions, including a child’s cartoon-covered electric toothbrush, a stuffed animal, luggage and electronics, stretched everywhere.

Rescuers in masks shouted over the noise of hovering helicopters. They quickly realized there would be no survivors.
The Boeing 737-800 model that went down is an extremely common twin-engine jetliner used for short- to medium-range flights. Thousands are used by airlines around the world.
Introduced in the late 1990s, it is an older model than the Boeing 737 MAX, which has been grounded for nearly 10 months following two deadly crashes. The jet that went down on Wednesday last underwent routine maintenance on Monday, the airline said.
A number of 737-800 aircraft have been involved in deadly accidents over the years, including a FlyDubai crash in Russia in 2016 that killed 62 people and an Air India Express disaster in India in 2010 that left more than 150 dead.
The 737-800s have been the subject of inspections and repairs since last year, after airlines started reporting cracks in a part that keeps the wings attached to the fuselage.
While the cause of the crash remained unknown, the disaster could further damage Boeing’s reputation, which has been battered by the 737 Max furor.
Boeing extended condolences to the victims’ families and said it stands ready to assist. Boeing, like other airline manufacturers, typically helps in crash investigations. But that effort could be thwarted in this case by the U.S. sanctions imposed against Iran since Trump withdrew the United States from the 2015 nuclear deal with Iran.
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