As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR FAILED TO RETRACT AFTER TAKEOFF. RED LIGHT STAYED ILLUMINATED WITH NO GREEN LIGHT. THERE WAS NOTICEABLE DRAG AS IF THE AIRPLANE WAS NOT CLEAN. EXTENDED LANDING GEAR & BLEW THE BOTTLE FOR PRECAUTION. R & R A DEFECTIVE LANDING GEAR PCB NZ004 IAW CE-560XL MM 24-51-00. OPERATIONS CHECKED GOOD. SERVICED NLG STRUT AS REQUIRED IAW CE-560XL MM 12-14-00. PERFORMED LANDING GEAR FUNCTIONAL CHECKS IAW CE-560XLMM 32-01-00, NO DEFECTS NOTED.