After review of pictures of the incident provided by the user facility the following explanation is the most likely cause of the light falling: the upper l/r light arm was out at a 90 degree angle from the dental chair toward a half-wall that was within the range of the light arm.When the dental chair was being lowered while the light was in this position, the light assembly would get caught on the half-wall which would cause the upper l/r arm to raise out of the joint.This would allow the light assembly and upper l/r arm to separate from lower l/r arm and tip toward the patient sitting in the dental chair.Additionally, the user facility stated they would not send the unit back for evaluation as they decided to assemble the dental light back together and resume using it.No servicing or replacements components were requested by the user facility.
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