What was found
NEW AIRCRAFT FROM FACTORY. PERFORMED AD SEARCH DUE TO EXPORT REQUIREMENT DURING ANNUAL. FOUND CESSNA SUPPLIED AD LIST DID NOT MATCH LYCOMING SUPPLIED LIST, AND CESSNA HAD CHANGED 8 AD SIGN-OFFS FROM LYCOMING. CESSNA CONTACTED, AND SAID THEY HAD TO CHANGE LYCOMING'S LIST BECAUSE IT WAS IN ERROR. LYCOMING CONTACTED WITH NO REPLY YET. STRAIGHT FLIGHT PMI BROUGHT INTO LOOP, AND WANTED SDR FILLED OUT. PMI WILL ALSO ACTION. VERY SERIOUS IN NATURE AS LYCOMING SAYS THEY CHANGED NUMEROUS PARTS FOR AD COMPLIANCE, INCLUDING THE CRANKSHAFT, WHEN THESE AD'S DO NOT APPLY IN THE FIRST PLACE. SUSPECT YOU WILL FIND LARGE RUN OF LYCOMING ENGINES WITH THIS SAME PROBLEM. THESE ENGINES ARE NOT AIRWORTHY WITH FALSE AD LISTS.