When are adverse loading checks conducted?

• A. Anytime a repair or alteration causes EWCG to fall outside the CG range.
• B. Only during annual inspections.
• C. Before every flight.
• D. When fuel is added.

Answer: (A)

Adverse loading checks are required whenever the aircraft’s empty weight center of gravity (EWCG) changes in a way that moves outside the approved CG range. If a repair or alteration shifts the EWCG beyond the published CG envelope, the loading data no longer guarantee safe operation, so an adverse loading check is performed to confirm that the aircraft can still be loaded within the allowed weight-and-balance limits across the full range of loading scenarios. This isn’t something you rely on every flight or only at annual inspections, and it’s not triggered simply by adding fuel, since routine fuel changes are accounted for within the established loading data. The check specifically ensures the new EWCG keeps the CG within safe limits under the aircraft’s normal loading conditions.