As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR WOULD NOT EXTEND AND GEAR DOORS WOULD NOT OPEN WHEN GEAR WAS EXTENDED. RECYCLED GEAR, SYSTEM FUNCTIONED NORMAL. REMOVED AND REINSTALLED AFT PIVOT PIN ON OVER-CENTER LINK TO OBTAIN 55 DEGREE ANGLE ON IDLER ARM IAW DC9 MM 32-20-00. OPS CHECKED GOOD.