When must de-icing/anti-icing be completed for Latitude operations?

• A. Only when flight crew observes icing in flight.
• B. Complete de-icing after takeoff if required.
• C. Apply per manufacturer SOP and local regulations; ensure de-ice/anti-ice is completed before takeoff and documented.
• D. De-icing is optional in Latitude operations.

Answer: (C)

The essential rule is that de-icing or anti-icing must be performed before takeoff whenever icing conditions exist or are possible, and it must be done per the airplane manufacturer’s SOP and the local regulations. Following the SOP ensures you apply the correct fluids in the right sequence and understand when anti-icing is needed to prevent new ice formation versus simply removing existing ice. Local regulations add any additional checks, reporting, or airport-specific requirements you must follow to legally release the aircraft.

Documentation is part of the process too. You must record that the de-ice/anti-ice was completed, along with details such as the fluids used and the holdover time applicable, so there is an auditable record that the aircraft was prepared safely for takeoff. This combination—proper procedure, timely application before departure, and thorough documentation—is what keeps flight operations compliant and reduces the risk of icing-related performance issues.