What's behind Boeing's grounded 737 max 8?

In 2018 and 2019, Boeing 737 max 8 suffered two consecutive crashes, causing heavy casualties. The accident investigation found that the aircraft had design defects and its automatic anti-stall system, MCAS, caused the aircraft to stall. Boeing and regulators were negligent in the design and certification process, which led to the defects not being detected in time. To ensure safety, the global Boeing 737 max 8 aircraft was urgently grounded, Boeing is repairing defects, re-apply for certification.

Section 1 - Accident Background

On October 29, 2018, an Ethiopian Airlines Boeing 737 max 8 flight took off unexpectedly, In just a few minutes, the plane will fall into the abyss, all 157 passengers and crew died in the tragedy.

On the day of the incident, the sky was blue, the plane was flying smoothly, and when everyone thought everything was fine, everything became silent. The plane lost contact with the ground and news of the crash quickly spread around the globe.

The accident has attracted global attention, people can not help but ask why this should be safe aircraft, will suddenly crash, And what caused this tragedy.

Section 1 - Accident Background

Indonesia Lion Air Boeing 737 max 8 crash on March 10, 2019

All 189 people on board were killed

Accident shocks global, prompts safety probe

Become the focus of global attention, Boeing 737 MAX 8 safety is facing a severe test, these two accidents, not only shocked the aviation sector, It also raises questions about aviation safety, with the Boeing 737 MAX 8, hailed as a new generation of " sky stars ", Now it is in the midst of an unprecedented crisis, in which Boeing's reputation has been badly damaged, It has also sparked a worldwide safety review, with airlines suspending use of the aircraft amid growing public concerns about aviation safety. The future of the Boeing 737 MAX 8 is shrouded in uncertainty,

Section 2 - Issues identified in accident investigation

Boeing 737 max 8 flight control system problems, automatic anti-stall system (MCAS) design defects.

The investigation revealed serious defects in the flight control system and significant problems in the automatic anti-stall system (MCAS).

The core of the problem is the obvious defects in the design of the flight control system, especially the automatic anti-stall system (MCAS).

The flight control system has serious defects, and the design of automatic anti-stall system (MCAS) raises concerns.

The findings point to serious problems in the Boeing 737 max 8 flight control system, especially in the automatic anti-stall system (MCAS).

Section 2 - Issues identified in accident investigation

The aircraft system lowers the nose automatically without pilot operation.

The nose tilt raises the risk of stall and endangers safety.

System failure requires immediate review of its design and operating procedures.

Section 2 - Issues identified in accident investigation

The pilots failed to respond effectively to this automatic descent in both incidents, and the automatic descent system did not work as expected in an emergency.

Both incidents showed that pilots lacked adequate training to deal with such emergencies.

The investigation found pilots lacked adequate decision-making skills and coping strategies in emergency situations.

The accident report stated that the pilot failed to identify and deal with the anomaly in the automatic descent system.

The operational errors shown by pilots in responding to emergencies are one of the main causes of accidents.

The accident investigation further revealed the inadequacy of pilots in dealing with complex flight conditions.

The pilot failed to take effective measures quickly in an emergency, resulting in serious consequences of the accident.

The results showed that the pilots had a poor understanding of how the automatic descent system worked.

The pilot failed to use emergency procedures effectively at the time of the accident, which led to the accident.

The accident investigation found that the pilots lacked the necessary psychological qualities to deal with emergencies.

The pilot failed to take effective measures in time in two accidents, which led to the accident.

Section III - Design flaws in Boeing's 737 max 8

The Boeing 737 max 8 was originally designed to pursue fuel efficiency and cost reduction, There seems to be a lack of emphasis on security.

Some key design elements of the aircraft, such as the maneuverability enhancement system, while contributing to improved performance, may also be a safety hazard.

In the design process, the complexity of pilot's operating habits and emergency response may not be fully considered, resulting in the potential risks can not be effectively identified and prevented.

Although the Boeing 737 max 8 was popular in the early days of its launch, its design flaws have exposed serious challenges in aviation safety.

Section III - Design flaws in Boeing's 737 max 8

The complexity of MCAS system design is staggering, but the pilot training does not pay enough attention to it.

The complex structure of the system makes it difficult for pilots to fully grasp its operating principle.

The training process lacks the thorough explanation to the MCAS system and the actual operation training.

Pilots lack of awareness and coping ability of the MCAS system.

Boeing may have missed a full evaluation of the MCAS system during the design phase of the 737 max 8, Its performance was also not adequately tested in the certification process.

During the design and certification process, Boeing appears to have failed to conduct an in-depth analysis of potential risks to the MCAS system, which may have led to subsequent problems.

Boeing may need to re-examine its responsibilities in the 737 max 8 program, particularly in the development and testing of the MCAS system.

Section IV - Responsibility of Boeing and regulators

Regulators may have been negligent in the certification process and failed to detect and correct Boeing's mistakes in time.

Boeing's mistakes may have been missed because of lapses in the certification process by regulators.

Regulators may have had flaws in the certification process that led to Boeing's mistakes not being corrected in a timely manner.

Section 5 - Grounding of Boeing's 737 max 8 and subsequent steps

Boeing 737 max 8 emergency grounded, global safety monitoring upgraded, strict review procedures launched.

Grounding measures quickly implemented, the aviation industry faces unprecedented challenges.

Airlines face cost pressures and passenger travel plans are disrupted.

Boeing responded aggressively by conducting a full investigation to find the root cause of the problem.

Pilots receive new training to improve their ability to respond to emergencies.

Regulators strengthen oversight to ensure the safety of grounded aircraft.

Boeing 737 max 8 grounded incident triggered industry reflection, safety has become a top priority.

Section 5 - Grounding of Boeing's 737 max 8 and subsequent steps

Boeing is working on deep modifications to the 737 max 8 to address the problems posed by the MCAS system while actively seeking regulatory approval.

Boeing is going all out to make technical adjustments to the MCAS system to restore flight safety.

Boeing is in close communication with regulators and following a rigorous certification process to ensure the safe return of the 737 max 8.