Which section in the instructions for continued airworthiness is GACA approved?

The correct answer is the Airworthiness Limitations Section, which is vital for aircraft safety and compliance. This section outlines critical operational limitations and mandatory maintenance tasks that must be adhered to in order to ensure the continued airworthiness of an aircraft. The Airworthiness Limitations Section typically includes information on component life limits, inspections, and other specific maintenance requirements that are essential for sustaining safe flight operations over the aircraft's lifecycle. It’s a regulatory requirement for operators to follow the limitations detailed in this section to maintain certification and compliance with aviation safety standards.

While the other sections mentioned may contain important information related to aircraft maintenance and safety, they do not carry the same level of regulatory importance concerning mandatory inspections and limitations required for airworthiness. Therefore, the Airworthiness Limitations Section is specifically designated as GACA approved, emphasizing its critical role in ongoing aircraft safety management.