SEATTLE TIMES RE FAA AND BOEING
https://www.seattletimes.com/busines...ncy-directive/FAA follows Boeing’s 737 safety alert with an emergency directive
Originally published November 7, 2018 at 2:47 pm Updated November 7, 2018 at 3:36 pm
The FAA said its directive addresses the potential impacts of false information coming from a sensor on the plane's exterior.
Following
Boeing’s safety alert Tuesday evening in response to the
Lion Air 737 MAX crash in Indonesia, the FAA on Wednesday issued an Emergency Airworthiness Directive, effective immediately, mandating that airlines must update pilot procedures according to the instructions in the alert.The FAA said its directive addresses the potential effects of false information coming from a sensor on the plane’s exterior that reports the plane’s “angle of attack” (AOA), which is the angle between the wing and the flow of air the jet is moving through.This key data point is fed into the flight computer along with the temperature and air speed. These three metrics affect one another and are used by various systems that control the airplane’s flight.
GOES ON ..