What is the standard weighing interval for the subject aircraft?

• A. 12 months
• B. 24 months
• C. 36 months
• D. 48 months

Answer: (C)

The main concept is keeping weight and balance data current so you can load the aircraft safely. The standard practice is to reweigh and update the aircraft’s weight and balance information every 36 calendar months. This interval exists because the empty weight and the center of gravity can change over time with maintenance, replacements, or configuration changes, and you need accurate data to compute permissible payload, fuel, and loading limits for flight. If a major modification or repair is made that could affect weight or balance, you should reweigh sooner than 36 months. The other intervals are not the standard requirement for this aircraft in typical Part 135 operations.