[{"draft":"","doc_id":"RFC0638","title":" IMP\/TIP preventive maintenance schedule ","authors":["A.M. McKenzie"],"format":["ASCII","HTML"],"page_count":"4","pub_status":"UNKNOWN","status":"UNKNOWN","source":"Legacy","abstract":"   Corrects RFC 633.  ","pub_date":"April 1974","keywords":["  "],"obsoletes":["RFC0633"],"obsoleted_by":[""],"updates":[""],"updated_by":[""],"see_also":[""],"doi":"10.17487\/RFC0638","errata_url":null}]