Table of Contents
How many AoA sensors does a 737 MAX have?
two
Stall is indicated through an angle of attack (AoA) sensor – the 737 Max is fitted with two, but MCAS only used one. If that AoA sensor failed, then the MCAS could activate when it shouldn’t, unnecessarily pushing the nose down.
What is the reason for Boeing 737 MAX crash?
Federal prosecutors say key Boeing employees “deceived the FAA,” misleading the safety regulators about a new flight control system on the 737 Max called MCAS. That system activated erroneously, contributing to the deadly crashes, by forcing the planes into nosedives that the pilots could not pull the aircraft out of.
What does the 737 MAX MCAS do?
MCAS, or Maneuvering Characteristics Augmentation System, is a flight control law implemented on the 737 MAX to improve aircraft handling characteristics and decrease pitch-up tendency at elevated angles of attack.
What is the 737 MAX problem?
Airlines pulled dozens of 737 MAX jets from service early last month after Boeing warned of a production-related electrical grounding problem in a backup power control unit situated in the cockpit on some recently built airplanes.
Is there a difference between 737 and 737 MAX?
The 737 MAX is a fourth-generation Boeing 737, re-engined with CFM LEAP-1B turbofans. The 737 MAX is based on earlier 737 designs, with more efficient CFM International LEAP-1B engines, aerodynamic changes, including its distinctive split-tip winglets, and airframe modifications.
Is MCAS necessary?
In early 2020, the FAA, Transport Canada, and EASA evaluated flight test results with MCAS disabled, and suggested that the MAX might not have needed MCAS at all. The FAA began requiring all MAX pilots to undergo MCAS-related training in flight simulators by 2021.
Will 737 MAX ever fly again?
The FAA approved the Boeing 737 Max to fly again after extensive investigations. After 20 months of grounding following two crashes that killed 346 people, the FAA is allowing the jet to fly again. Self-regulation was one of the biggest controversies that prolonged the crisis.
How many systems does the Boeing 737 MAX have?
Like all commercial aircraft, the Boeing 737 Max has multiple levels of redundancy for its important systems. In the cockpit, there are three flight computers and digital instrument panels operating in parallel: two primary systems and one backup. Each system is fed by an independent set of sensors.
What are the a319/320/321neos affected by the 737 MAX?
Like the 737 MAX, the A319/320/321neos are affected by the mounting of larger engines with their larger nacelles ahead of the center of gravity, Figure 1.
What went wrong with Boeing’s 737 MAX?
At last, Boeing admitted what the world had feared: something was fundamentally wrong with the brand-new 737 Max. The culprit was the Maneuvering Characteristics Augmentation System (MCAS). Like the 737 Max, MCAS was made to be a stopgap. The Max was designed around a new set of engines called LEAP-1Bs.
Does the Boeing 737 MAX need MCAS certification?
Nowhere in its amended type certification of the 737 Max is MCAS mentioned. Even still, Boeing only recommends a 30-minute self-study course for pilots on MCAS, rather than additional simulator or classroom instruction.