In overhaul documentation, what is the role of non-destructive examination (NDT) reports?

• A. Provide lubrication schedule.
• B. Provide engine serial number.
• C. Provide color of coatings.
• D. Provide non-destructive examination results supporting component integrity.

Answer: (D)

NDT reports in overhaul documentation capture the findings from methods that inspect a part without damaging it, such as ultrasonic, eddy current, magnetic particle, or dye penetrant testing. The key point is that these reports document whether the component remains within required integrity limits by recording indications, their location and size, the acceptance criteria used, and the inspector’s conclusions. This information provides the evidence needed to decide if a part can be repaired, reused, or must be rejected, and it also creates traceability for future audits and airworthiness compliance. In addition, the report usually notes the testing procedures, equipment calibration, and reference standards used, so the integrity assessment is verifiable.

Lubrication schedules, engine serial numbers, and the color of coatings are not the purpose of NDT reports; lubrication planning, identifiers like serial numbers, and coating appearance are documented in other parts of the overhaul records.