Question

Which of the following is the most extensive check to be performed on an aircraft?

(a) Category A-Check

(b) Category B-Check

(c) Category D-Check

(d) Category C-Check

This question was addressed to me in an internship interview.

The doubt is from Overview of an Aircraft-1 in section Aircraft Systems and Aviation Overview of Aircraft Maintenance

Answer 1

Correct choice is (c) Category D-Check

To explain: Category-D check is the most extensive check to be performed on an aircraft, it may also be referred to as Heavy Maintenance Visit. Such checks are performed every 5 to 6 years and require a tremendous amount of manpower.