As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UNABLE TO EXTEND GEAR DURING APPROACH. THE THREE INDICATIONS LIGHTS REMAINS IN RED AND THE LG SELECTOR HANDLE WAS AMBER. EMERGENCY LANDING GEAR EXTENSION CARRIED OUT.LANDING GEAR SELECTOR VALVE, STRIPREPORT FOUND CORE ASSY. HAD MUSHROOMED & WAS OUT OF ROUND AT THE TOP. UNIT OVERHAULED.