Chart correction N23/21 — chart 55042

55042 2Ed. 7/28/12 LAST NM N19/21 N23/21 Substitute Mooring buoy Y, can, Fl(4) Y with legend “(3 buoys)” [Q41.1] for buoy 41°01′08″N 28°00′02″E Mooring buoy Y, can, Fl(3) Y with legend “(4 buoys)” [Q41.1] for buoy 41°00′41″N 27°59′48″E Mooring buoy Y, can, Fl(3) Y with legend “(4 buoys)” [Q41.1] for buoy 41°00′17″N 27°59′48″E Add Mooring buoy Y, can, Fl Y with legend “(3 buoys)” [Q41.1] 41°00′49″N 27°59′57″E Dolphin [F20] with light Mo(U) W 15s AIS 41°00′28″N 27°59′47″E Anchorage symbol [N10] 40°58′38″N 27°58′00″E AIS [S17.1] to beacon 40°58′21″N 27°57′53″E AIS [S17.1] to light 40°58′02″N 27°57′45″E (13(53)21 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 2Ed. 7/28/12

Reference information — always verify against official Notices to Mariners before navigation.