As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR WOULD NOT RETRACT. FOUND NLG STRUT BOTTOM CHAMBER SHRADER VALVE PACKING CUT AND NO AIR IN THE STRUT. REPLACED PACKING AND SERVICED NLG STRUT IAW AMM 12-12-09 AND GREASED NLG AND SCISSOR LINKS. CYCLED GEARS SEVERAL TIMES IAW 32-33-00-501. FUNCTION CHECK AND OPERATION CHECK OK.