What is the form used to record a system discrepancy?

• A. AF Form 340
• B. DD Form 250
• C. AFTO 781A
• D. AF IMT 4

Answer: (C)

When a system shows a fault during maintenance, you formalize it with the AFTO 781A form, the Maintenance Discrepancy Record. This document is specifically designed to capture what’s wrong, where the problem is located, when it was observed, who saw it, and what immediate actions were taken. It creates a clear, auditable trail that allows the right maintenance teams to assign the fault to the correct subsystem, plan corrective work, and track actions through to closure. This standardized reporting supports safety, reliability, and efficient maintenance planning, so the asset can be returned to service with documented oversight. Other forms exist for different administrative or material processes, but they are not the standard tool for documenting a system discrepancy.