Why is it essential to verify chart revision date against the aircraft model/configuration?

• A. Data may be inaccurate because charts rely on model/configuration.
• B. It doesn't matter; charts are universal.
• C. It improves accuracy.
• D. It only affects color of chart.

Answer: (A)

Charts are created for a specific aircraft model and its exact configuration. The performance data you see—takeoff and landing distances, climb rates, speeds, and other numbers—depend on details like engine type, weight, gear, flaps, and optional equipment. If you apply data from the wrong variant or an outdated revision, you’re using numbers that don’t reflect the actual airplane you’re flying, which can lead to incorrect performance calculations.

The revision date tells you you’re looking at the latest corrections and data for that particular configuration. Verifying that the chart revision matches your aircraft ensures you’re using the correct, up-to-date information, which directly supports accuracy and safety in performance planning.

Other choices aren’t as fitting because charts aren’t universal across variants, and the color or superficial attributes of the chart don’t matter for accuracy.