What is the correct requirement regarding icing in known or forecasted icing conditions?

• A. Known or forecasted icing must not be flown into
• B. Unknown icing is acceptable
• C. Light icing requires no special procedures
• D. Moderate icing requires no de-icing equipment

Answer: (A)

Icing conditions should be avoided when they are known or forecast. The safest approach is to plan a route or altitude that keeps you out of those conditions, or delay the flight until icing risk is gone. Even light icing can affect lift and control, so you don’t rely on de‑icing or anti‑icing gear as a permit to fly into icing. Unknown icing isn’t something you can assume won’t occur, so it’s not acceptable to proceed under that assumption. Options suggesting that moderate icing is okay or that no special procedures are needed after icing occur are not consistent with safe flight planning—icing can escalate quickly and must be avoided when known or forecast.