Why would a person with conductive hearing loss hear the tuning fork through bone conduction longer than or equally as long as through air conduction?

When a person with conductive hearing loss hear the tuning fork through bone conduction longer than or equally as long as through air conduction it is most likely due to something that inhibits the passage of sound waves from the ear canal, through the middle ear apparatus and into the cochlea.

Air transduction is the process of sound transport through the auditory system (sensory organs and sensory system). The air converts the sound into action potentials of the nerve fibers from the eardrum to the ossicles and labyrinth).

In conduction hearing loss, this transduction is impaired and consequently the hearing is limited.