How do you determine whether a control surface has sufficient free play?

The determination of whether a control surface has sufficient free play fundamentally relies on measuring the operational limits as specified in the maintenance manual. The maintenance manual provides precise specifications and tolerances for the operational limits of control surfaces, ensuring that they operate effectively within defined parameters. These specifications are established through engineering assessments and testing during the design and certification of the aircraft.

When measuring operational limits, technicians can ensure that the control surface does not experience excessive free play, which could lead to unpredictable handling characteristics or potential safety issues. Adhering to the maintenance manual's guidelines helps maintain the aircraft's airworthiness and ensures that all control surfaces function as intended, safeguarding against performance failures during operation.