Dennis Muilenburg, the President, Chairman and Chief Executive Officer of The Boeing Company, said his company failed to properly implement a safety alert feature on its 737 MAX aircraft, grounded globally in wake of two deadly plane crashes.
โWe clearly fell shortโฆ The implementation of that software, we did not do it correctly,โ Muilenburg said.
โOur engineers discovered that,โ he said, adding that the company was working to resolve the issue.
The safety feature can notify pilots of problems early in a flight, and possibly could have prevented the crash of Ethiopian Airlines flight 302 in March, Chris Brady, the author of Boeingโs 737 Technical Guide, told the BBC.
โI’m fairly confident that the Ethiopian Airlines flight probably would not have crashed if they had had the AOA disagree alert,โ Brady said, referring to the safety software.
The crash, which killed all 157 passengers, is now being investigated, but the prime suspect is the malfunction of the aircraftโs flight control system. A doomed Lion Air flight out of Indonesia, also a 737 MAX, is said to have experienced a similar problem last October before it crashed, killing the 189 people onboard.
Boeing said last month that the alert, which could have prompted pilots to follow a different emergency procedure, โhas not been considered a safety feature on airplanes and is not necessary for the safe operation of the airplane.โ
The US Federal Aviation Administration concluded in an internal investigation earlier this month that the agency failed to properly oversee Boeingโs safety tests for the 737 MAX, deferring to the companyโs own experts and allowing the defective systems through the agencyโs approval process.