What condition must be avoided when induced roll exceeds control capacity?

When the induced roll exceeds control capacity, it is crucial to avoid roll control issues. This situation often arises when the aircraft experiences excessive lateral forces or moments that surpass the pilot's ability to counteract them effectively with the ailerons or other control surfaces. If an aircraft rolls beyond its control limits, it can result in the pilot being unable to stabilize or correct the roll, which could lead to a loss of control.

Maintaining effective roll control is critical for safe flight operations, as it directly influences the ability to maneuver the aircraft as intended. If the roll control becomes inadequate, the pilot may struggle to recover from the induced roll, leading to potential safety hazards such as uncontrollable spins or other dangerous flight conditions.

The other conditions mentioned—flight level, speed limitations, and height restriction—are important for various aspects of flight management but do not directly relate to the specific concern of maintaining controllability during excessive roll situations.