As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THIS GAUGE IS PART OF STC SA4378WP AVIADESIGN, INC., HYDRAULIC LANDING GEAR SYSTEM. GAUGE FOUND PEGGED ON HIGH SIDE. AFTER RELEASING PRESSURE, GAUGE DROPPED TO A MINIMUM READING OF 800 P.S.I.G. SUBMITTER RECOMMENDS A BETTER QUALITY GAUGE BE USED IN SYSTEM.