As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE ACCESSORY GEARBOX REAR COVER IS CORRODING ON THE FLANGES AND AROUND BOLT HOLES. ACCOMPLISHED STEPS (1) THRU (4) OF THE REPAIR OF CORROSION OR PITTING ON ABG MOUNT PADS AND EXTERNAL SURFACES. INSPECT AGAIN AND REPEAT STEPS (1) THRU (4) AT EVERY AIRCRAFT MINOR INSPECTION UNTIL A PERMANENT REPAIR IS PERFORMED IAW P&WC 306D1 MM 72-60-01 REV. 17.1. PER NETJETS A, REINSPECTION ALIGNS WITH THE 1A (800 HR) AIRFRAME INSPECTION.