What was found
LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. LUBRICATED LANDING GEAR CONTROL BY-PASS VALVE, OPS CHECKED GOOD IAW DC9 MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. LUBRICATED LANDING GEAR CONTROL BY-PASS VALVE, OPS CHECKED GOOD IAW DC9 MM.