FLC OF AN LGT OPERATED ACFT WITHOUT CURRENT MAINT FLT RELEASE AFTER A MAINT FERRY FLT.

Narrative

AS THE CAPT OF THIS SCHEDULED PART 121 FLT; I COMPLETED MY PREFLT; WHICH INCLUDED AN INSPECTION AND REVIEW OF THE ACFT LOGBOOK. EVERYTHING APPEARED NORMAL; INCLUDED AN AIRWORTHINESS RELEASED WHICH HAD BEEN RECORDED 2 OR 3 DAYS EARLIER. I NOTED THE AIRPLANE HAD BEEN FERRIED DUE TO SOME MINOR MAINT WHICH HAD BEEN PERFORMED. I FAILED TO REMEMBER THAT FERRY FLTS FOR MAINT RELATED PURPOSES REQUIRED A NEW AIRWORTHINESS RELEASE. WE FLEW THE AIRPLANE UNEVENTFULLY; AS DID 9 OTHER AIR CREWS SINCE THE FERRY FLT. ANOTHER COMPANY PLT CAUGHT THE DISCREPANCY A DAY OR TWO LATER; AND BROUGHT IT TO THE ATTN OF OUR COMPANY MAINT DEPT. MAINT THEN SIGNED OFF A NEW AIRWORTHINESS RELEASE. THE COMPANY PLT WHO CAUGHT THE DISCREPANCY CALLED ME AND TOLD ME ABOUT IT ON OCT/MON/00. I COULD HAVE PREVENTED THIS OVERSIGHT BY HAVING BETTER KNOWLEDGE OF THE REQUIREMENTS FOR AN AIRWORTHY AIRPLANE. EVEN THOUGH I HAD BEEN MADE AWARE OF THE MAINT/FERRY FLT REQUIREMENT IN THE PAST; I DID NOT CORRECTLY APPLY THIS RULE TO MY LOGBOOK INSPECTION. THE FACT THAT OUR COMPANY MAINT FAILED TO RECORD THE RELEASE IS NO EXCUSE FOR MY OVERSIGHT.