Which of the following alterations must be recorded for a single-harness dual parachute pack?

For a single-harness dual parachute pack, it is essential to record alterations to the harness, auxiliary parachute, and auxiliary parachute container. This is because each component plays a critical role in the overall functionality and safety of the parachute system.

The harness is the primary interface between the jumper and the parachute system, needing to be in optimal condition for effective operation. The auxiliary parachute serves as a backup in case the main parachute fails, so any modifications to it must be documented to ensure reliability in emergency situations. Additionally, alterations to the auxiliary parachute container, which houses the backup parachute, are vital to note for operational safety and deployment effectiveness. Proper documentation of these components ensures that all changes are tracked and reviewed for compliance with safety regulations and operational standards.

This comprehensive recording helps maintain the integrity of the entire parachute system, setting a standard practice for equipment safety and jumper preparedness.