As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3290 - ORF-PHF - AFTER GEAR UP SELECTION, GOT VIBRATION ALONG WITH 3 RED AND 3 GREEN LIGHTS AND NOSE WHEEL YELLOW GEAR DOOR LIGHT. VISUAL INSPECTION CONFIRMED MAIN LANDING GEAR DOWN AND DOORS OPEN. PERFORMED ALTERNATE GEAR EXTENSION, DECLARED EMERGENCY AND RETURNED TO ORF WITHOUT INCIDENT. REMOVED AND REPLACED THE PROXIMITY SWITCH ELECTRONIC UNIT (PSEU). (M)