Where do you find the leveling means that are specified for a particular aircraft?

• A. In the Type Certificate Data Sheets for the aircraft.
• B. In the Aircraft Maintenance Manual.
• C. In the Flight Manual.
• D. In the Airworthiness Directive.

Answer: (A)

Leveling means are defined in the Type Certificate Data Sheet because this document lists the approved configuration and the tools or devices that may be used to establish and verify the aircraft’s level during manufacturing, assembly, and maintenance. The certification data within the TCDS ensures any leveling method used keeps the aircraft within its certified limits, so using tools or methods not stated there would not be part of the approved configuration.

The Aircraft Maintenance Manual provides procedures and practical steps, but it doesn’t authorize different leveling means from what the certification data sheet specifies. The Flight Manual covers operating procedures and performance limits, not the approved maintenance tooling. An Airworthiness Directive addresses required actions for safety issues, not the baseline tooling approved for leveling.