One of the most important paragraphs in the letter introduces a complete definition of airframe icing and leaves very little to the imagination. In the letter the author states: The formation of ...
“Airframe icing was observed on the leading edge of both wings and horizontal stabilizers, both engine nacelles, and the leading edge of the rudder,” said the preliminary report, which was rel ...
It was also determined that the “airframe de-icing” system was switched on and off several times. However, it remains to be determined whether this was done manually by the crew or if it was a ...