Who must approve repairs to primary structures before work begins?

• A. Maintenance Supervisor
• B. QA Inspector
• C. ALC Engineering
• D. Operations Officer

Answer: (C)

Repairs to primary structures require engineering approval before any work starts because these parts affect the aircraft’s airworthiness and structural integrity. The responsible authority reviews the proposed repair, confirms it aligns with approved data (such as structural repair manuals or engineering orders), and issues the authorization to proceed. In this context, that responsibility lies with ALC Engineering. They ensure the repair method is correct and that the aircraft will be returned to a safe, airworthy condition.

A maintenance supervisor can plan and supervise work, but cannot grant the engineering authorization needed for primary-structure repairs. A QA inspector verifies compliance after the repair is completed, and an Operations Officer isn’t the authority for approving structural repairs.