As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
100272867: RIGHT WING GEAR FAILED TO EXTEND WITH ALTERNATE GEAR EXTENSION, DECLARED EMERGENCY. REMOVED AND REPLACED WING GEAR ALTERNATE ELECTRIC ACTUATOR. OPERATIONAL CHECK GOOD. NO DEFECTS NOTED. NO FURTHER ACTION REQUIRED AT THIS TIME (JACKED AIRCRAFT PERFORMED ALTERNATIVE ACTION) IAW B747-400 AMM 32-36-01 AND AMM 07-11-01.