Before starting a Daily Troubleshooting Analysis (DTA), what must be done?

The correct answer emphasizes the importance of reviewing the Aircraft Data Base (ADB) and any open work orders before beginning a Daily Troubleshooting Analysis (DTA). This step is crucial as it provides context for any discrepancies or issues that need addressing. The ADB holds pertinent information regarding the aircraft's maintenance history, including any known gripes or previously reported problems. By checking these records, the technician can identify existing issues that may be causing operational difficulties, allowing the troubleshooting process to be more focused and efficient.

In addition, if there are outstanding work orders, these documents inform the technician of any unresolved issues that could affect the troubleshooting efforts. This foundational knowledge helps ensure that all relevant information is considered before diving into the analysis process, thereby improving the likelihood of quickly identifying and rectifying problems.

While verifying that all systems are operational, securing permissions from the pilot, and completing a pre-flight inspection are all important procedures in aircraft maintenance and operations, they fall under different scopes and may not be directly related to initiating the troubleshooting analysis itself. Checking the ADB and open work orders provides a direct pathway to understanding the current status of the aircraft and any prior issues that need to be addressed.