[{"draft":"","doc_id":"RFC0633","title":" IMP\/TIP preventive maintenance schedule ","authors":["A.M. McKenzie"],"format":["ASCII","HTML"],"page_count":"4","pub_status":"UNKNOWN","status":"UNKNOWN","source":"Legacy","abstract":"   An old version; see RFC 638.  ","pub_date":"March 1974","keywords":["  "],"obsoletes":[""],"obsoleted_by":[" RFC0638"],"updates":[""],"updated_by":[""],"see_also":[""],"doi":"10.17487\/RFC0633","errata_url":null}]