BAYPORT, NY, USA
N6878S
North American Rockwell Corp. 680
AT ABOUT 60 FT AGL BLACK SMOKE WAS OBSERVED COMING FROM THE LEFT ENG. THE ACFT CONTINUED A CLIMB IN A NOSE HIGH ATTITUDE& THE NOSE PITCHED DOWN & THE ACFT ROLLED INVERTED. ENG TEARDOWN REVEALED EXTENSIVE DAMAGE TO THE SUPERCHARGER ASSEMBLY.THE IMPELLER SHAFT WAS BENT & ITS ASSOCIATED BEARING DAMAGED. THE ACFT HAD NOT FLOWN FOR ABOUT 14 YRS. ENG SERVICE INSTRUCTIONS DESCRIBE PRE-OILING OF THE SUPERCHARGER DRIVE SHAFT BEARING AFTER ANY PROLONGED PERIOD OF INACTIVITY. THE OWNER, A PARAPLEGIC, WAS SEATED IN THE LEFT SEAT. THE PLT SEATED IN THE RIGHT SEAT HAD A HISTORY OF HEART & PULMONARY DISEASE. THE GEAR & FLAPS WERE IN THE DOWN POSITION. PRIOR TO DEPARTURE, A WITNESS ASKED THE OWNER 'ARE YOU DOING THE ELEVATORS AND AILERONS AND IS HE YOUR RUDDERS.' THE OWNER RESPONDED WITH 'WE HAVE AN ARRANGEMENT.'
Source: NTSB Aviation Accident Database
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