As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR DID NOT RETRACT ON DEPARTURE. SWITCHED POSITION DET FROM SYSTEM 1 TO SYSTEM 2. LANDING GEAR RAISED NORMALLY. REPLACED LANDING GEAR CONTROL SWITCH REF AMM 32-31-11, OPS CHECK GOOD. REPLACEMENT PROX UNIT BAD FROM STOCK, ORDERED ANOTHER REPLACEMEN. C/W NORMAL GEAR EXTENSION AND RETRACTION IN REF TO AMM 32-31-00/501 OPS NORMAL