The safety-wiring, or lock wiring, of gas turbine parts is required to _________.

Correct Answer: Option A — prevent disengagement of parts

Gas turbines operate under extreme vibration and thermal cycling. Safety-wiring is a critical mechanical locking method used to secure fasteners, preventing them from vibrating loose or disengaging during operation. This ensures the structural integrity of internal components and prevents catastrophic foreign object damage (FOD) within the engine flow path.