As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FLIGHT EXPERIENCED A CONFIGURATION SYSTEM WARNING HORN. WOULD NOT RESET. AIRCRAFT RETURNED TO JFK. ON FIRST APPROACH WITH FLAPS AT 30 THE FLAPS MOVED TOWARD UP, UNCOMMANDED. *S/D* NOSE GEAR STRUT WAS SERVICED WITH NEW SEALS IN JFK. CENTERING CAM WAS INADVERTENTLY INSTALLED 180 OUT WHICH PREVENTED NOSE GEAR AIR/GROUND SIGNAL TO READ AIR MODE ON SUBSEQUENT FLIGHT. CENTERING CAM WAS REPOSITIONED IN MIAMI.