As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR WOULD NOT RETRACT AFTER TAKEOFF. MX OPERATED GEAR SEVERAL CYCLES WITH NO FAULTS. OHMED OUT ALL SQUAT SWITCHES, ALL RESISTANCE NORMAL. CHECKED NOSE STRUT SERVICING, FOUND NOSE STRUT LOWER BARREL PSI LOW. TROUBLESHOT TO LEAKING O-RING ON LOWER SHRADER VALVE. R & R O-RING AND BACKUP RING. ACCOMPLISHED FULL NOSE STRUT SERVICE. SWUNG GEAR WITH NO FAULTS NOTED. SYS OPERATES SATISFACTORY AT THIS TIME. WORK PERFORMED IAW MM 32-20-00.