(b)(6).Field service specialist visited the account.Prior to fse's arrival, customer reported seeing a ''fan error'' upon start-up.System checkout was performed.Found ac/dc switcher fan defective.Replaced ac/dc switcher as required.Fse on site observed ''galvos buzzing.'' ordered replacement galvo assembly, and installed as required.Successfully completed 3 month preventive maintenance verifications.System meets abbott specifications.All pertinent information available to abbott medical optics has been submitted.
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