For example, 14 CFR Part 105 (subpart C) requires the person packing either the main chute or the reserve parachute to be a certificated rigger, which means he or she has taken an FAA-approved training course and has passed rigorous FAA testing.
14 CFR Part 105 is based on the assumption that any individual who chooses to skydive has assessed the dangers involved and assumes personal responsibility for his or her safety.
An investigator will examine the circumstances and route of the flight; the certification of the pilot; the airworthiness of the aircraft; and will ensure that the parachutes were packed in accordance with the regulations.
If the FAA determines one or more of the regulations were violated, it will launch a separate investigation into the areas under its regulatory control, which concern the aircraft, its pilot, mechanic, the location or timing of the jump, and the parachute rigging.
Some drop zones are located beneath complex airspace, and jump organizers will have a Letter of Agreement with the appropriate FAA air traffic control facility to address site-specific issues and concerns.