What was found
PILOT REPORTED UNUSUALLY LOUD WIND NOISE AFTER GEAR RETRACTION. NO UNSAFE LIGHT. PILOT DID TOWER FLY-BY AND TOWER CONFIRM LT NOSE DOOR OPEN. LANDED AND MANUALLY RESET GROUND RELEASE LEVER IN NOSE BAY (USED FOR RELEASE OF LT NOSE GEAR DOOR TO INSTALL SAFETY PIN IN NOSE GEAR DURING GROUND HANDLING AND TOWING). CYCLED NOSE DOOR OPEN AND CLOSED USING HYDRAULIC SYSTEM. DOORS FUNCTIONED NORMALLY.