Who can grant permission for maintenance operations that involve an open flame at an aerodrome?

The correct choice identifies that the aerodrome operator is the authority able to grant permission for maintenance operations involving an open flame at an aerodrome, and it must be documented in writing. This requirement exists because the aerodrome operator is responsible for ensuring that safety protocols are followed during such potentially hazardous operations. By requiring written permission, there is a formal record of the authorization, which helps to verify that all safety measures have been considered and that there is accountability in allowing open flame usage in proximity to sensitive or critical areas at the airport.

In contrast, while the airport manager might have significant responsibility over airport operations, the aerodrome operator encompasses broader oversight, including safety regulations. Air traffic control supervisors are focused on the management of flight operations and separation, rather than maintenance activities. The local fire department, while critical in fire safety and response, is not typically the authority that issues permits for operational activities at the aerodrome level. The established protocol is designed to prioritize safety and compliance with aviation regulations.