As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR FAILED TO RETRACT AFTER TAKEOFF. HANDLE WOULD NOT RAISE ABOVE OFF POSITION. COMPLIED WITH APPROPRIATE CHECKLIST PG 2-6-2 AND RETURNED FOR LANDING. REMOVED AND REPLACED AIR SENSE PROX SWITCH IAW MFG M/M 32-09-221. ALSO, REPAIRED OPEN CIRCUIT IN SAME, OPS CHK PER M/M 32-02-221. PERFORMED GEAR SWING DUE TO AIR TURNBACK, OPS CHK OK.