This month, a company document revealed that MAX pilots had exchanged messages about MCAS failures while the plane was being certified in 2016 and the defect was not reported to the FAA – the MAX series debuted in May 2017. It was the first fatal accident of the Boeing 737 MAX, which in turn lead to the type’s international grounding following the crash of Ethiopian Airlines Flight ET302 on 10th March 2019. Almost 400 aircraft were already delivered to customers prior to the grounding in March. It also states that during the onset of the issue, the stall warning Stick Shaker was activated. This week they stated no details from the CVR would be made public until the final investigative report is released later this year, likely August or September. […] Lion Air JT610 and “the effect of surprise” Last year, when Indonesian investigators released a preliminary crash report, they described a grim … The Indonesian National Transportation Safety Committee (KNKT) final Lion Air JT610 737 MAX accident investigation report lists 89 findings explaining what factors caused the … Passengers on Lion Air’s ill-fated flight JT610 experienced similar sickening drops in altitude in the 13 minutes they were in the air before the plane plummeted with … Boeing CEO Dennis Muilenburg said there was a sequence of events that resulted in the Lion Air crash. The Indonesian National Transportation Safety Committee (NTSC) has released its final report on the crash of Lion Air flight 610. Nearly a year after the crash of the Lion Air Boeing 737 MAX 8, Indonesia’s air accident investigators committee released its final report on the crash of the aircraft on October 29, 2018.The 322-page document points out that failures of the Boeing, the airline and the pilots caused the disaster that killed 189 people. Boeing reports that it already has a fixed version of MCAS and sensors for the 737 MAX and is “working with the US Federal Aviation Administration (FAA) and other global regulators to make software updates and other changes” to safely return the aircraft to market. Boeing says it expects the type to return to flight at the end of the year, and also issued a statement in response to the NTSC’s report. On Friday, air crash investigators in Indonesia released their final report, detailing the list of events that caused the Lion Air jet to plunge into the Java Sea. The result of such is that the aircraft can have a tendency to pitch up more than previous models. This is the largest commitment for the aircraft type in 2020, a year in which Boeing has lost more … [read more], Shanghai-based airline Juneyao Air has taken delivery of its first Airbus A321neo aircraft. The malfunction of this software has been the focus of investigators to find the cause of the crashes of Lion Air and Ethiopian Airlines. Indonesian investigators released their final Lion Air flight 610 crash report this morning, finding that Boeing’s design of the Maneuvering Characteristics Augmentation System (MCAS), the FAA’s certification of the system, the airline’s maintenance of the aircraft, and the pilots’ actions during the flight all contributed to the crash. However, as the problem was not properly recorded by the company’s crews, the plane was allowed to take off without correction, the Indonesian authorities said. Under international rules, a final crash report is due within 12 months if that is possible. A series of failures led to the crash of a Lion Air flight, which killed 189 people and led to the grounding of the Boeing 737 Max, a report has found. Moreover, it was a unique system without redundancy. Quite amazing Lion Air doesn’t take their share of the responsibility for the accident. The program adjusts the horizontal stabilizer to lower the nose of the aircraft when a possible aerodynamic stall (loss of lift) situation is detected based on data from the airspeed, altitude and angle of attack sensors of the aircraft. Indonesian officials recovered the Cockpit Voice recorder from Lion Air 610 on 14 January. The crews were also unaware of the issues on the previous flight, and because the cockpit warning light to warn of the two AoA sensors providing conflicting information (AoA disagree) was optional and not installed on the accident aircraft, the crew had little time to deal with a situation they weren’t prepared for – a problem compounded by the fact that Boeing had not informed crews about the existence of MCAS in the first place. The report is giving detailed information about what happened and also investigates the chain of events that led to the crash. They did, however, fail to report the activation of the Stick Shaker which would have stressed the gravity of the situation. We now analyze the initial part of the flight. Crews were not informed about MCAS in their training modules for the new jet, and in an unprecedented cost-cutting move, the system relied on a single Angle-of-Attack indicator to operate, instead of having using to sensors to have one backup. “Since this accident, the 737 MAX and its software are undergoing unprecedented level of global regulatory oversight, testing and analysis. If one of the nine had been avoided, the accident might not have happened,” Indonesian air accident investigator Nurcahyo Utomo told a news conference. November 15, 2019, ©. Boeing President and CEO Dennis Muilenburg said “We commend Indonesia’s National Transportation Safety Committee for its extensive efforts to determine the facts of this accident, the contributing factors to its cause and recommendations aimed toward our common goal that this never happens again.”, “We are addressing the KNKT’s [Indonesian for NTSC] safety recommendations, and taking actions to enhance the safety of the 737 MAX to prevent the flight control conditions that occurred in this accident from ever happening again.”. It turns out that this unit was also faulty, and had a 21 degree bias which activated MCAS as soon as the crew retracted the flaps after take-off on the fateful flight. The MCAS is a flight control system that is designed to assist crew in specific conditions. Leeham News: We started the series on analyzing the Lion Air JT610 crash based on the final crash report last week by looking at what went wrong with the aircraft’s Angle of Attack sensors. Indonesian experts identified problems with the system, which repeatedly pushed the nose of the Lion Air plane as pilots tried to regain control. A report with many recommendations. This sensor provided information to the aircraft’s Maneuvering Characteristics Augmentation System, the MCAS. Leeham News: We continue the series on analyzing the Lion Air JT610 crash. Boeing has since suspended deliveries and is currently storing hundreds of newly built 737 MAX, as they await a lifting of the grounding through an FAA certification of the aircraft manufacturer’s updates for the jet. Ryanair places firm order for 75 more Boeing 737 MAX, Condor successfully leaves insolvency protection, Berlin Brandenburg Airport to close Terminal 5, southern runway, Volga-Dnepr Airlines confirms grounding of Antonov An-124. In turn, MCAS was erroneously activated on the previous flight, where the crew (which had an off-duty 737 pilot in the cockpit jump seat) managed to disable the Stabilizer Trim as per the ‘runaway stabilizer trim’ checklist. The crashes of Lion Air flight JT610 in October 2018 and Ethiopian Airlines flight ET302 in March 2019, both Boeing 737 MAX planes, were initiated by a single malfunctioning sensor, which led to the pilots fighting a new flight control system that forced the planes into a deadly nosedive minutes after takeoff causing the deaths of 346 people. Once the aircraft had landed, the crews reported the problem with the AoA sensor to maintenance. The final report into the Lion Air crash could be released by July, Indonesian investigators said. The maintenance crews replaced the faulty sensor on the left of the aircraft (which feeds data to MCAS – the secondary unit on the right of the nose does not) with a unit which was refurbished by a Xtra Aerospace in Miramar, Florida. The return of the 737 MAX is still uncertain and has no date set, although Boeing has already pointed out that it must have released the plane by the end of this year. The finalized document also confirmed that the aircraft maintenance record was missing 31 pages. Five months after the Lion Air jet crash, another 737 MAX from Ethiopian Airlines crashed near Addis Ababa, Ethiopia, killing all 157 occupants on board, leading to the worldwide shutdown of the 737 MAX. Then, shortly after 6.30am, their lives collided. Update 29 November Another flaw pointed to a crucial sensor, purchased from a Florida company, had not been properly tested by Boeing, according to the report. He has a particular focus on aircraft safety, accidents and technical details. IFN.news requires cookies in order to work with an optimal user experience. The aircraft landed safely in Jakarta, although the NTSC criticised the crew for not landing as soon as possible, given the nature of the problem. Indonesia Releases Report on Lion Air Crash.