As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON GEAR RETRACTION, CREW HEARD A LOUD THRUMP. THE LEFT MAIN GEAR INDICATED RED. CREW DECLARED AN EMERGENCY. THE FLIGHT RETURNED AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE ACTION PENDING. LT MAIN LANDING GEAR ACTUATOR BEAM ARM FOUND CRACKED. REAR MAIN LANDING GEAR SUPPORT BEAM DAMAGED. BEAM ARM HAD 59,000 LANDINGS. LAST ULTRASONIC INSPECTION WAS DEC, 2003. PARTS TO BE ANALLYZED.