As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, RIGHT MAIN GEAR UNSAFE LIGHT REMAINED ON AFTER INITIAL RETRACTION. THERE WAS NO ASSOCIATED YAW OR NOISE. AFTER RECYCLING GEAR, ALL INDICATIONS WERE NROMAL. FOUND PIN A BENT ON R5-1150. STRAIGHTENED PIN. OPS CHECKED GOOD IAW DC-9 AMM 32-60-00.