What is the minimum weight for a turbine-powered rotorcraft that can be supervised by a holder of an inspection authorization during a progressive inspection?

The correct answer highlights the regulatory allowance for inspection authorization holders concerning turbine-powered rotorcraft during progressive inspections. Inspection authorization holders can oversee progressive inspections for turbine-powered rotorcraft regardless of whether they weigh below or above the threshold of 12,500 pounds. This means that the range of applicable aircraft encompasses any turbine rotorcraft, making the provision very flexible for maintenance practices.

The overarching regulation allows an IA to supervise these aircraft sizes to ensure that comprehensive inspections align with Federal Aviation Administration (FAA) standards, emphasizing safety and airworthiness for diverse rotorcraft operations. Recognizing both weight classifications in this context helps ensure that maintenance professionals understand their authority across a wide spectrum of aircraft types. This understanding is crucial for operational protocols and compliance with the FAA regulations that govern the safety of rotorcraft maintenance.