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Airlines are extending Boeing 737 Max cancellations into the autumn as the jet waits to be recertified.
Dallas-based Southwest Airlines said in a statement that it was removing the Max from its schedule until 1 October, which means roughly 150 flights a day out of 4,000 will be cancelled.
United and American Airlines are removing the Max from schedules until 3 September. The move is to reduce the number of last-minute flight cancellations and unexpected disruption, according to the airlines.
The aircraft was grounded worldwide in March following two fatal crashes that killed 346 people.
There is no clarity on when the aircraft might return to service.
Show all 9 1 /9Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures This picture taken on March 11, 2019, shows debris of the crashed airplane of Ethiopia Airlines, near Bishoftu, a town some 60 kilometres southeast of Addis Ababa, Ethiopia. - An Ethiopian Airlines Boeing 737 crashed on March 10 morning en route from Addis Ababa to Nairobi with 149 passengers and eight crew believed to be on board, Ethiopian Airlines said. (Photo by Michael TEWELDE / AFP)MICHAEL TEWELDE/AFP/Getty Images
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Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures Family members mourn the victims at the crash site of the Ethiopian Airlines operated Boeing 737 MAX aircraft, at Hama Quntushele village in the Oromia region, on March 13, 2019. - A Nairobi-bound Ethiopian Airlines Boeing crashed minutes after takeoff from Addis Ababa on March 10, 2019, killing all eight crew and 149 passengers on board, including tourists, business travellers, and "at least a dozen" UN staff. Families of the victims were taken to the remote site on March 13, 2019, where the plane smashed into a field with 157 passengers and crew from 35 countries, leaving a deep black crater and tiny scraps of debris. (Photo by TONY KARUMBA / AFP)TONY KARUMBA/AFP/Getty Images
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Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures A page of a Boeing flight crew operations manual is seen at the scene of the Ethiopian Airlines Flight ET 302 plane crash, near the town of Bishoftu, near Addis Ababa, Ethiopia March 12, 2019. REUTERS/Baz Ratner
REUTERS
Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures epa07434278 Rescue workers search the site for pieces of the wreckage of an Ethiopia Airlines Boeing 737 Max 8 aircraft near Bishoftu, Ethiopia, 13 March 2019. Ethiopian Airlines flight ET 302 carrying 149 passengers and 8 crew was en route to Nairobi, Kenya, when it crashed on 10 March 2019 by yet undetermined reason. All passengers and crew aboard died in the crash. The Boeing 737 Max 8 aircraft has come under scrutiny after similar deadly crashes in Ethiopia and Indonesia within a few months. Several countries have banned the plane type from their airspace and many airlines have grounded their 737 Max 8 planes for safety concerns after the Ethiopian Airlines plane crashed minutes after take-off on 10 March. EPA/STRINGER
EPA
Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures A grounded Boeing 737 MAX 8 passenger plane of the Norwegian low-cost airline Norwegian is parked at the tarmac at Vantaa airport in Vantaa near Helsinki, Finland on March 13, 2019. - A number of countries have banned Boeing's 737 MAX 8 medium-haul workhorse jet from their airspace in response to the Ethiopian Airlines crash that killed all 157 people on board. (Photo by Heikki Saukkomaa / Lehtikuva / AFP) / Finland OUTHEIKKI SAUKKOMAA/AFP/Getty Images
AFP/Getty Images
Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures Rescue workers search the site for pieces of the wreckage of an Ethiopia Airlines Boeing 737 MAX 8 aircraft near Bishoftu, Ethiopia, 13 March 2019. Ethiopian Airlines flight ET 302 carrying 149 passengers and 8 crew was en route to Nairobi, Kenya, when it crashed on 10 March 2019 by yet undetermined reason. All passengers and crew aboard died in the crash. The Boeing 737 Max 8 aircraft has come under scrutiny after similar deadly crashes in Ethiopia and Indonesia within a few months. Several countries have banned the plane type from their airspace and many airlines have grounded their 737 Max 8 planes for safety concerns after the Ethiopian Airlines plane crashed minutes after take-off on 10 March. EPA/STRINGER
EPA
Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures A heap of debris from the wreckage of an Ethiopia Airlines Boeing 737 MAX 8 aircraft are piled at the crash site near Bishoftu, Ethiopia, 13 March 2019. Ethiopian Airlines flight ET 302 carrying 149 passengers and 8 crew was en route to Nairobi, Kenya, when it crashed on 10 March 2019 by yet undetermined reason. All passengers and crew aboard died in the crash. The Boeing 737 Max 8 aircraft has come under scrutiny after similar deadly crashes in Ethiopia and Indonesia within a few months. Several countries have banned the plane type from their airspace and many airlines have grounded their 737 Max 8 planes for safety concerns after the Ethiopian Airlines plane crashed minutes after take-off on 10 March. EPA/STR
EPA
Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures A crew working with an investigative team to clear the site after the Sunday crash of the Ethiopian Airlines operated Boeing 737 MAX aircraft, carry debris at Hama Quntushele village in the Oromia region, on March 13, 2019. - A Nairobi-bound Ethiopian Airlines Boeing crashed minutes after takeoff from Addis Ababa on March 10, killing all eight crew and 149 passengers on board, including tourists, business travellers, and "at least a dozen" UN staff. Families of the victims were taken to the remote site on March 13, 2019, where the plane smashed into a field with 157 passengers and crew from 35 countries, leaving a deep black crater and tiny scraps of debris. (Photo by TONY KARUMBA / AFP)TONY KARUMBA/AFP/Getty Images
AFP/Getty Images
Boeing 737 MAX grounding: Ethiopia Airlines Flight 302 in pictures FILE PHOTO: An American Airlines Boeing 737 MAX 8, on a flight from Miami to New York City, comes in for landing at LaGuardia Airport in New York, U.S., March 12, 2019. REUTERS/Shannon Stapleton/File Photo
REUTERS
In both the Lion Air accident in Indonesia on 29 October 2018 and the Ethiopian Airlines crash near Addis Ababa on 10 March 2019, an anti-stall system known as MCAS forced the nose down despite the best efforts of the pilots to save the aircraft.
Boeing has been working on a fix to the software glitch and is currently awaiting approval from the regulator.
The planemaker says: “Boeing engineers and test pilots are working closely with the Federal Aviation Administration and international regulatory authorities to develop, test and certify updates to the 737 MAX to help ensure MCAS never contributes to an accident again.”
This week, a new flaw that could result in the plane’s nose pitching downwards had been found on the Boeing 737 Max, the airline manufacturer said.
The flight management computer problem in the plane’s system was discovered by Federal Aviation Administration (FAA) test pilots when using updated Max software in a flight simulator, Boeing said.
Less than a quarter of passengers would be happy to fly on a Boeing 737 Max after its two fatal crashes, according to a Twitter poll conducted by The Independent .
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