As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE OFF. THE GEAR HANDLE WAS SELECTED TO THE UP POSITION. THE NOSE GEAR DID NOT RETRACT. GEAR DISAGREE N CAUTION ILLIMINATED. FOLLOWED PROCEDURES. ACCOMPLISHED THE BLOW DOWN PROCEDURE. LANDED WITHOUT INCIDENT. SHOWED THREE GREEN FOR LANDING. SERVICED PNEUMATIC BOTTLE AND RESET CONTROL ARM. OPS CHECK GOOD. IAW AMM 12-10-45