77.1404—Certifications and records of daily examinations.
         At the completion of each daily examination required by  § 77.1403, the person making the examination shall certify, by signature and date, that the examination has been made. If any unsafe condition is found during the examinations required by  § 77.1403, the person conducting the examination shall make a record of the condition  and the date. Certifications and records shall be retained for one year.