What is the maximum weight for a turbine-powered rotorcraft that a holder of an inspection authorization may supervise during a progressive inspection?

The correct choice indicates that an inspection authorization (IA) holder has the ability to supervise progressive inspections on turbine-powered rotorcraft of any weight, thus implying no maximum weight restrictions apply. This flexibility is significant as it allows IA holders to oversee a wide range of aircraft, accommodating both lighter and heavier turbine-powered rotorcraft within the aviation industry.

In practical terms, the progressive inspection program is tailored to allow for thorough maintenance checks at regular intervals, potentially enhancing aircraft safety and airworthiness across a diverse fleet without limiting the capability of the IA holder based on the aircraft's weight.

This context highlights the importance of the IA in ensuring compliance with regulations while maintaining appropriate oversight for turbine-powered rotorcraft, irrespective of their weight category.