Before performing surface prep and touch up on a CAT 4 item, the action must be approved by whom?

Before performing surface prep and touch up on a CAT 4 item, the action must be approved by whom?

• A. Maintenance supervisor
• B. FSR/QAR
• C. Quality inspector
• D. Safety officer

Answer: (B)

The action must be approved by the Field Service Representative (FSR) and the Quality Assurance Representative (QAR) because they are the ones who verify that field repairs, including surface prep and touch-up on CAT 4 items, follow the approved corrosion-control data and are properly authorized and documented. This dual approval ensures the correct methods, materials, and inspection criteria are used and that the work stays within the approved data and airworthiness requirements. A maintenance supervisor oversees daily tasks but does not provide the formal approval for this specialized field action, and a safety officer focuses on safety practices rather than approving repair procedures.

The action must be approved by the Field Service Representative (FSR) and the Quality Assurance Representative (QAR) because they are the ones who verify that field repairs, including surface prep and touch-up on CAT 4 items, follow the approved corrosion-control data and are properly authorized and documented. This dual approval ensures the correct methods, materials, and inspection criteria are used and that the work stays within the approved data and airworthiness requirements. A maintenance supervisor oversees daily tasks but does not provide the formal approval for this specialized field action, and a safety officer focuses on safety practices rather than approving repair procedures.