A CESSNA 150 WAS ALLEGED TO HAVE OVERFLOWN AN AIRWORTHINESS DIRECTIVE ON AN OIL PUMP IMPELLER FAILURE. CAUSE MAY BE CONFLICT BTWN PUBS.

Narrative

ACFT X WAS SOLD ON MAR/SUN/03. THE ACFT WAS SOLD WITH 1928.0 HRS ON THE HOBBS; ATFT (ACFT TOTAL FLYING TIME); AND 1980 HRS ON THE ENG. THE NEW OWNER; WHILE CONDUCTING THE ANNUAL INSPECTION; CALLED ME AND TOLD ME I HAD OVERFLOWN AIRWORTHINESS DIRECTIVE 96-09-10; OIL PUMP FAILURE DUE TO IMPELLER FAILURE. ALL HE TOLD ME WAS THE IMPELLER PART NUMBER WAS 60747; AND THAT IT WAS HIT BY THE AIRWORTHINESS DIRECTIVE AND SHOULD HAVE BEEN CHANGED BY JUL/SUN/01. NOW THAT I AM NO LONGER IN POSSESSION OF THE BOOKS; PROPER RESEARCH CANNOT BE ACCOMPLISHED. BUT; PER THE PART NUMBER (60747) AND PER AC43-16A; JUN/XX/01; WHICH STATES THAT 'PART NUMBER 60747; ALUMINUM OIL PUMP IMPELLER; IS NOT AN IMPELLER AND SHAFT ASSEMBLY. IT IS AN IMPELLER THAT ROTATES ON A FIXED; NON ROTATING SHAFT. THIS SHAFT IS RETAINED BY A COTTER PIN PASSING THROUGH THE OIL PUMP HOUSING AND SHAFT. THIS CONFIGN IS NOT AFFECTED BY THIS AIRWORTHINESS DIRECTIVE.' IT WAS FROM THIS STATEMENT THAT I DID NOT CHANGE THE PUMP; WHICH IS NOW UNDER QUESTION. THE NEW OWNER; AS OF THIS DATE (APR/MON/03); HAS NOT CONTACTED ME FOR COMMENT; AND IT STILL REMAINS UNDER QUESTION ON WHETHER OR NOT THE AIRWORTHINESS DIRECTIVE WAS TRULY OVERDUE.