Regulacje i polityka gospodarcza · 07/11/2016
United Instruments, Inc. Proposes Airworthiness Directive for 5934 Series Altimeters
United Instruments, Inc. is proposing an airworthiness directive to replace certain altimeters installed in airplanes and helicopters that may display incorrect altitude readings due to a slow diaphragm leak, posing a risk of inadvertent flight into terrain.