As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 275 - GSO-PHL - ON CLIMB-OUT FROM GSO, THE NOSE LANDING GEAR WOULD NOT RETRACT. FLIGHT RETURNED TO GSO WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND AN EXCESSIVE AMOUNT OF GREASE IN AND AROUND THE NOSE GEAR DOWNLOCK PLUNGER. CLEANED AND EXCESSIVE AMOUNT OF GREASE OFF OF THE DOWNLOCK PLUNGER. GEAR SWING NORMAL. (M)