What is the wind limitation for axle jacking during main gear wheel change?

• A. 25 knots
• B. 20 knots
• C. 15 knots
• D. 30 knots

Answer: (A)

Wind conditions matter because axle jacking lifts a heavy main-gear wheel assembly that is normally stabilized by the aircraft and braking systems. A gust or crosswind can push the airframe or the jack, causing lateral movement, misalignment, or a loss of support during removal or installation of the wheel. Keeping wind to 25 knots or less minimizes those horizontal forces, helping maintain stability and safe handling of the gear during the wheel change. The other options would either impose unnecessary delays (lower limits) or exceed a safe operating threshold (higher limit), so 25 knots is the standard, safe limit.