During a flight, what does the Electronic Flight Bag primarily provide access to?

The Electronic Flight Bag (EFB) primarily provides access to flight manuals, which include essential documents necessary for operating the aircraft safely and efficiently. These manuals contain critical information, such as standard operating procedures, checklists, performance calculations, and emergency procedures. The EFB allows pilots to reference these materials quickly and conveniently during flights, enhancing situational awareness and improving the decision-making process.

While aircrew training materials, mechanical maintenance records, and weather updates are important in aviation, they do not represent the primary function of an EFB. The main purpose of this technology is to streamline the access to and management of flight-related documents and information, which is crucial for flight operations. Thus, flight manuals are the central element that the EFB is designed to provide flight crews.