What went wrong with the Boeing 777?

US NTSB cites United crew failure in Boeing 777 altitude loss incident. WASHINGTON, Aug 10 (Reuters) - The National Transportation Safety Board on Thursday cited United Airlines (UAL. O) crew failure in a December 2022 flight that sharply lost altitude before recovering shortly after departing Kahului, Hawaii.



The Boeing 777X program has faced a decade of setbacks, primarily due to technical failures, engine issues, and increased regulatory scrutiny following the 737 MAX crisis. Significant problems began in 2019 when a fuselage structural failure occurred during a high-pressure ground test, causing a cargo door to blow out. Subsequent issues included "uncommanded pitch events" during test flights, where the plane's nose moved without pilot input. The GE9X engines also suffered from compressor durability issues and thrust link failures, leading to multiple fleet groundings. By 2026, the program has incurred nearly $5 billion in charges, with first deliveries pushed to 2027—six years behind the original 2021 target. These failures have been compounded by supply chain disruptions and a more rigorous FAA certification process, leaving Boeing struggling to restore confidence in its long-haul flagship while navigating broader corporate safety and quality control challenges.

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The trijet 777 was later dropped, following marketing studies that favored the 757 and 767 variants. Boeing was left with a size and range gap in its product line between the 767-300ER and the 747-400.

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The Boeing 777 is the best-selling long-haul carrier in the history of aviation. It has an exceptional life-span of 30 years, but what's the secret behind this record-breaking longevity? In this film, a 777 is taken apart, inspected, and entirely refurbished.

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The aircraft is highly popular with airlines (more than 1,500 passenger and freighter variants have been delivered) because it can carry a large number of passengers — and cargo — long distances using only two engines.

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Comfort and Amenities Both the 777 and 787 are designed with passenger comfort in mind, but the 787 has some advantages in this area. For example, the 787 features larger windows that allow more natural light into the cabin, as well as a lower cabin altitude that reduces the effects of jet lag.

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The Boeing 737 MAX aircrafts are returning to the skies. If there is an aircraft that you want to avoid it is this one. The 737MAX has been responsible for the deaths of 346 people in 2 separate plane accidents.

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The Christmas Bullet, later known as the Cantilever Aero Bullet (sometimes referred to as the Christmas Strutless Biplane), was an American single-seat cantilever wing biplane. It is considered by many to be among the worst aircraft ever constructed for its time.

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Therefore, the ERJ135/140/145 members of the family are among the safest airliners in history. The Airbus A340 is also one of the safest, with no fatal accidents involving any of the 380 units since its introduction in March 1993.

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United Airlines says FAA has cleared 52 Boeing 777s to fly again after they were grounded for engine failure. United's 52 Pratt & Whitney-powered Boeing 777s have been grounded since an engine failure in February 2021. The airline plans to begin flying the aircraft this month and bring them back gradually.

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The Boeing 777 (BA. N) jet lost altitude about one minute after departure in heavy rain, descending from 2,100 feet to about 748 feet above the water before the crew recovered from the descent.

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The Boeing 777 is one of the safest and most successful aircraft in aviation history. If you've been on a long-haul flight in the last 20 years, there's a high probability that you've been on one. First entering service in 1995 with United Airlines, it is now a member of over 50 different airline's fleets.

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However, particularly high praise should be given to older aircraft, such as Boeing's 737-600 and 737-900 models, that have never had a hull loss, despite having been in service since the turn of the century.

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Emirates is the largest operator of the Boeing 777 with 148 aircraft, having operated each 777 family variant. The 777 is produced in two fuselage lengths.

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We have made it clear that the Boeing 777 can actually fly with one engine without much trouble. Whether it is fuel starvation, the fan blades, or any mechanical failure causing the engine to fail, if any of the jet engines fail, the remaining engine can help the plane fly safely.

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The Boeing 777-200LR holds the world record for the longest non-stop flight without refueling with a flight distance of 11,664 nautical miles (21,601.7 km). The 777-300ER, which is the most popular variant, has a range of 14,490 kilometers (7,825 nautical miles).

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The 777-300 carries 388 passengers with a range up to 5,845 nautical miles (10,820 km). The 777-200ER (Extended Range) carries 314 passengers with a range up to 7,510 nautical miles (13,900 km). To offer airlines additional flexibility in serving nonstop routes, Boeing introduced two new longer range 777 airplanes.

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Other major 777 incidents While the 777 remains one of the safest aircraft of all time, there have been a few incidents resulting in hull losses and fatalities. On January 17th, 2008, British Airways flight 38 became the first hull loss of the 777 when it crashed just short of Runway 27L at London Heathrow.

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The disappearance of the Boeing 777 with 227 passengers and 12 crew members on board led to a search effort stretching from the Indian Ocean west of Australia to Central Asia. The perplexing nature of the loss of flight 370 is such that it has become one of history's most famous missing aircraft.

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Some 83 aircraft have been declared “missing” since 1948, according to data compiled by the Aviation Safety Network. The list includes planes capable of carrying more than 14 passengers and where no trace — bodies or debris — has ever been found. Related Graphic: Where Could Flight 370 Be? >>

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