As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 0179 -DE/MISC- CREW REPORTED GEAR DISAGREE MESSAGE DURING ARRIVAL INTO SFO. AFTER CYCLING THE GEAR, THE MESSAGE CLEARED AND GEAR NORMAL INDICATED. CREW DECLARING EMERGENCY INBOUND. CORRECTIVE ACTION: REPLACED DOWN SENSE RELAY K904. PERFORMED OPERATIONAL TEST OF TAIL SKID EXTENSION AND RETRACTION, TESTS PASSED, NO FAULTS. (LP 5055572)