As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN LANDING GEAR LAMP INOPERATIVE ON GEAR EXTENSION. SWAPPED LEFT LAMP IN AND INDICATED GOOD ON THE RIGHT SIDE. CREW ELECTED TO DO A FLY BY OVER THE TOWER AT PDX. EMERGENCY EQUIPMENT WAS DISPATCHED. NO GEAR RECYCLE WAS ANNOTATED IN THE LOG BOOK. RELAMPED THE RIGHT MAIN LANDING GEAR INDICATION LIGHT. OPS CHECKED GOOD.