As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OPERATOR COMPLAINED OF HYDRAULIC SYSTEM STAYING ON AFTER LANDING GEAR RETRACTION. COULD NOT DUPLICATE ON JACKS. CESSNA FIELD SERVICE SUGGESTED INSTALLING NEW IMPROVED PARTS FOR UPLOCK HOOKS AND SWITCHES PER CESSNA SI LETTER NR M81-2. NEW PARTS WERE MORE SUBSTANTIAL AND HIGHER QUALITY. SOLVED PROBLEM. ORIGINAL PARTS BADLY WORN. SUBMITTER SUGGESTED COMPLIANCE ON ALL EARLY SERIAL NUMBERED AIRCRAFT. (X)