As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O, GEAR HANDLE RAISED, ALL 3 GEAR UNSAFE RED LIGHTS REMAIN ILLUMINATED ON FNT PANEL & TAILSKID LIGHT ON F/E PANEL. PERFORMED ABNORMAL CHECKLIST WITH SAME RESULT. RETURN TO IND. FOR UNEVENTFUL LANDING. DOWN & LOCK INDICATIONS ALL NORMAL & BELOW MAX LANDING WEIGHT.CORRECTIVE ACTION:R/R LANDING GEAR ACCESSORY UNIT OPS CK GOOD PER MM 32-09