As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NEW PTO SEALS INSTALLED IN REPAIRED GEARBOX ON 9-23-97. ENGINE WAS ASSEMBLED AND TESTED ON 11-07-97. DURING TEST RUN, FOUND FORWARD PTO SEAL LEAKING. NEW PTO SEALS ARE LARGER IN DIAMETER THAN (RED) PTO SEALS PN 524919. UPON INSTALLATION, SEALS ARE EXTREMELY TIGHT CAUSING SEALS TO BOW AND CAUSE LEAKAGE.