As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
6685 ON GEAR EXTENSION RECEIVED UNSAFE INDICATION FOR RT MLG ON SYS 1 SYS 2. COMPLIED WITH QRH PROCEDURES AND LG GRAVITY EXTENSION CHECKLIST. GEAR DOORS REMAINED OPEN, UNEVENTFULL LANDING KLRD. (ON LOW APPROACH, TOWER CONFIRMED RT MLG HUNG UP). TROUBLESHOT IAW FIM 32-30-00 FIG 115. FOUND RH GEAR SEQUENCE VALVE RIG HOLE NOT LINING UP/OUT OF RIG. REMOVED AND REPLACED RH GEAR SEQUENCE VALVE IAW AMM 32-31-37-04. LEAK AND OPS CHECKS GOOD.