A BE95-B55 DURING THE ENG REMOVAL FOR OVERHAUL THE ENG DATA PLATE DID NOT MATCH THE ENG SERIAL NUMBER IN THE LOGBOOK.

Narrative

UNCOWLED R ENG IN PREPARATION TO HAVE REMOVED FOR OVERHAUL. WHEN ENG DATA PLATE WAS EXPOSED; NOTICED THAT ENG SERIAL NUMBER DID NOT MATCH THE SERIAL NUMBER IN THE ENG LOGBOOK. ACFT IS A 1967 BEECH BARON 95-B55 WITH CONTINENTAL IO-470L ENGS. I HAVE OWNED THE AIRPLANE FOR APPROX 6 YRS; AND THE ENG HAS NOT BEEN REMOVED AT ANY TIME SINCE I BOUGHT THE AIRPLANE. THE PROB WAS NOT REVEALED DURING THE PRE-PURCHASE INSPECTION OR DURING NUMEROUS ANNUAL INSPECTIONS AND MAINT ACTIONS PERFORMED BY A NUMBER OF REPAIR FACILITIES OVER THE YRS. THE ENG LOG INDICATES THAT THE ENG WAS INSTALLED SEP/XA/72; APPARENTLY AS AN OVERHAUL-EXCHANGE UNIT. THE LOG ALSO SHOWS THAT THE ENG WAS LAST OVERHAULED ON DEC/XA/95; AND THAT THE CASE WAS 'REWORKED' AS PART OF THAT OVERHAUL. I WOULD SPECULATE THAT 'REWORKED' MAY MEAN IT WAS REPLACED WITH A SVCABLE CASE FROM ANOTHER ENG; AND THE ORIGINAL DATA PLATE WAS NOT XFERRED TO THE REPLACEMENT CASE. I AM CONSULTING WITH AN AVIATION ATTORNEY TO DETERMINE WHETHER THE ENG CAN BE LEGALLY REBUILT OR OVERHAULED AND REINSTALLED IN THE AIRPLANE.