As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF DURING CLIMBOUT LANDING GEAR SLATS AND FLAPS RETRACTED LEFT AND RIGHT MAIN GEAR INDICATION ON MAIN INST PANEL STILL SHOWED DOWN AND LOCKED OVERHEAD PANEL IND SHOWED GEAR UP AND LOCKED REMOVED AND REPLACED PROXIMITY SYSTEM EECTRONOCS UNIT IAW AMM 32-31-71-401. THIS CLEARS DEFERRAL 2872135. PLACARD REMOVED