If a hook block shows deformation or damage, what action should be taken?

• A. Continue Using With Extra Inspection
• B. Lubricate And Use Again
• C. Use A Different Hook Block Without Inspection
• D. Remove From Service And Replace Or Repair Before Reuse

Answer: (D)

When a hook block shows deformation or damage, it must be removed from service and repaired or replaced before reuse. Deformation can signal structural compromise, such as overload, fatigue cracks, or bent load paths, which can progress to a sudden failure under load. Keeping a damaged hook block in service creates a high risk of dropping the load or catastrophic equipment failure, endangering personnel and equipment. Repairs or replacements should be performed by qualified maintenance following the applicable procedures, and the item should only be returned to service after a complete inspection confirms it is safe. Lubricating and using again, using a different block without inspection, or continuing to operate with an apparently damaged component do not address the underlying safety risk and are not acceptable.