What action typically follows the identification of a fault requiring depot-level repair?

The identification of a fault that requires depot-level repair indicates a significant issue that cannot be resolved through routine maintenance or minor repairs. In this context, requesting one-time special repair authorization is a standard procedure. This request allows the necessary approval to initiate a more extensive repair process, which usually involves sending the aircraft or its components to a specialized maintenance facility equipped to handle such complex issues.

This procedure ensures that the repairs are conducted following stringent standards and that the aircraft is restored to operational readiness safely. Moreover, the request for authorization is crucial as it outlines the specifics of the fault, the expected timeline, and potential impacts on operations, thereby facilitating effective planning for the repair and any necessary aircraft availability changes.

The other options do not align with the typical process that follows the identification of such a fault. Immediate replacement of the aircraft may not be feasible or necessary unless other critical factors warrant it, and internal repairs by on-site technicians would not address depot-level issues that require specialized skills or equipment. An operationally ready assessment may occur later but is not the immediate action taken right after identifying a fault requiring extensive repair. Thus, pursuing a repair authorization reflects the best approach following the identification of significant issues needing comprehensive attention.