At the third level of integrity, what is the shed equipment?

The correct choice indicates that at the third level of integrity, the shed equipment includes the generator 1 bus and the generator 2 bus. This pertains to an operational aspect of aircraft systems, specifically within the context of a power management scheme where redundancy and weight considerations are essential.

In this scenario, shedding equipment refers to selectively deactivating non-critical systems to prioritize power for essential systems during certain operational conditions, such as electrical system overloads or failures. The generator busses are vital components because they distribute electrical power generated by the aircraft's engines to various systems. Prioritizing these busses within the third level of integrity signifies that if the system reaches a point of vulnerability or capacity strain, these busses can be shed to ensure that critical systems remain operational.

Understanding this context of power management in aviation is crucial for effective operation under Part 135 regulations, where safety and reliability in system design and operation are paramount. Therefore, the focus on the generator busses as shed equipment highlights their significance in maintaining the integrity and functionality of essential aircraft systems amid power constraints.