Loss of control risk behind proposed 737 wiring change

Three reports of pilots failing to manually activate air data sensor heating systems on Next Generation Boeing 737 aircraft have prompted the US Federal Aviation Administration to propose a fix to more than 1,000 aircraft in the US-registered fleet. Air data sensors include pitot tubes, which if partially or fully blocked by ice, provide erroneous airspeed information to the flight deck. (www.flightglobal.com) المزيد...