Final answer:
Line maintenance personnel act as technical advisors to plane captains to ensure timely completion of turnaround and daily inspections and to determine the extent and depth of flight line discrepancies.
Step-by-step explanation:
The technical advisors who assist plane captains in ensuring timely completion of turnaround and daily inspections, as well as determining the extent and depth of flight line discrepancies, are called line maintenance personnel. These individuals are responsible for maintaining the airworthiness of the aircraft on the flight line.
Line maintenance personnel work alongside plane captains and provide necessary technical expertise to identify and resolve any issues or discrepancies that may arise during inspections or turnaround processes. For example, if a plane captain notices a discrepancy on an aircraft component, they would consult with the line maintenance personnel to determine the appropriate course of action.
Line maintenance personnel play a crucial role in the aviation industry, ensuring the safe and efficient operation of aircraft by addressing maintenance issues promptly and ensuring compliance with regulatory requirements.