When is an acceptance inspection performed?

An acceptance inspection is primarily designed to ensure that newly assigned aircraft or equipment meets established specifications and standards before they are officially taken into service. This inspection is critical as it verifies that all systems are operational, safe, and meet performance criteria. Conducting this inspection as soon as the equipment is assigned allows the personnel to identify any discrepancies or issues that may need to be addressed before the aircraft enters operational status.

While inspections may also occur before flight operations, after repairs, or during regular maintenance cycles, those situations serve different purposes. The acceptance inspection is specifically focused on new assignments rather than ongoing maintenance or post-repair evaluations. This distinct focus on all newly assigned aircraft or equipment is what makes this answer the most appropriate choice.