Navigate / EASA

AMC 25.773(c) Internal windshield and window fogging

ED Decision 2015/008/R

In absence of pilot compartment openable windows, if the failures of the means to prevent fogging cannot be shown to be extremely improbable, the applicant should show that a sufficient field of view is maintained to allow the pilot to safely operate the aeroplane during all operations, including taxi. This should be accomplished by the following:

         The extent of fogging should be established and verified during flight tests with the means to prevent fogging inoperative,

         If it is proposed that the flight crew must take action to remove inside fogging, the effectiveness of the associated operational procedure should be demonstrated by flight test.

[Amdt 25/16]