As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON GEAR RETRACTION UNABLE TO RAISE GEAR. RAN ABNORMAL. SWITCHED FROM LEVER LOCK POSITION 1 TO 2 GEAR RETRACTED NORMALLY. RESEATED PROXIMITY DETECTOR MODULE AND PERFORMED OPS CHECK ON BOTH SYS 1 & 2 CHECKED OK FOR SERVICE PER M/M 32-61-12.