Who is allowed to alter the auxiliary parachute of a single harness dual parachute pack?

The proper answer to the question regarding who is allowed to alter the auxiliary parachute of a single harness dual parachute pack is the person who is a certificated Senior Parachute Rigger. This professional is specifically trained and certified to make alterations and repairs to parachutes, ensuring that any adjustments are done safely and according to established regulations.

In the context of parachute packing and maintenance, alterations can significantly impact the safety and performance of the parachute system. A certificated Senior Parachute Rigger understands the technical details and safety standards associated with parachute design and operation, making them qualified to perform any necessary modifications.

While the owner of the parachute may have a vested interest in its condition, and the user may have practical experience, they do not possess the specialized skills and certification needed to ensure that any alterations are safe and compliant with aviation regulations. The integrity of the parachute system can only be maintained through qualified professionals who have the training that ensures expert handling and adherence to safety protocols.