As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT, GOING THRU FL180 AND LATER FL 240. WE FELT BUMP FROM GEAR RE-RETRACTING. BOTH WERE AUDIABLE THUMPS. FOUND ALL THREE UP-LOCK SWITCHES OUT OF RIG AND NOSE GEAR EMERGENCY RELEASE CABLE TENSION WAS TOO TIGHT. MADE NECESSARY ADJUSTMENT IAW GEAR BUMP TROUBLE SHOOTING CHECKLIST, OPS CHECK GEAR GOOD.