As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - INFLIGHT T1544/16 JUL. CREW REPORTED VIBRATION AND NOISE DURING CLIMB. ACFT DID FLYBY AT SFO AND NOTICED RT FORWARD NOSE GEAR DOOR OPEN. RETURNED TO SFO AND LANDED WITHOUT INCIDENT. REPLACED RT FORWARD NOSE GEAR DOOR LINK. SYSTEM GROUND CHECKED NORMAL OPERATION. (S)