Which of the following is a required consideration before corrosion removal begins?

• A. Ensure the extent of damage has been correctly assessed
• B. Verify fuel levels are full before work
• C. Ensure the structure is painted with primer
• D. Schedule downtime with crew

Answer: (A)

Understanding how much damage is present is essential before you start removing corrosion. Knowing the extent tells you how deep the corrosion has penetrated, where it’s located, and whether there’s hidden damage that could affect the repair plan. This information guides the choice of removal method, helps determine if any material needs to be cut back or structural repairs are required, and ensures safety and airworthiness throughout the process. Without a correct assessment, you risk missing hidden corrosion, removing too little or too much material, or compromising the structure’s integrity.

Fuel levels aren’t related to the corrosion removal process, so they aren’t a determining factor. Applying primer is unnecessary before removing corrosion and would be premature. Scheduling downtime is a logistical consideration, but it doesn’t govern whether you can begin the removal work.