Sec.  90.445   Form of station records.

   (a) Station records shall be kept in an orderly manner, and in such detail
   that the data required are readily available. Key letters or abbreviations
   may be used if proper meaning or explanation is set forth in the record.

   (b) Each entry in the records of each station shall be signed by a person
   qualified to do so, having actual knowledge of the facts to be recorded.

   (c) No record or portion thereof shall be erased, obliterated, or wilfully
   destroyed within the required retention period. Any necessary correction may
   be made only by the person originating the entry, who shall strike out the
   erroneous portion, initial the correction made, and indicate the date of
   correction.