As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BIL - RIGHT GEAR WOULD NOT UP AND LOCK WHEN RETRACTION ATTEMPTED. SELECTED GEAR DOWN AND THREE GREEN LIGHTS ILLUMINATED AND LANDED WITHOUT INCIDENT. FOUND HYDRAULIC PACK CONTROL SWITCH INTERMITTENT. REPLACED HYDRAULIC PACK CONTROL SWITCH (PART NR 602EN602-6 BY MICROSWITCH). GEAR RETRACTION CHECKED OK. (M)