Chart correction N25/20 — chart 55042
55042 2Ed. 7/28/12 LAST NM N24/20 N25/20 Add “Spoil Ground” area [N62.1] bound by dashed line joining 40°53′28″N 28°13′00″E 40°53′57″N 28°14′14″E 40°52′44″N 28°17′14″E 40°51′50″N 28°16′14″E Platform (lighted) [L10] 41°02′41″N 28°10′52″E Prohibited area [N2.2] bound by existing purple composite line and purple composite-line circle, radius 0.25 mile, centered on above platform Platform (lighted) [L10] 41°02′02″N 28°11′38″E Prohibited area [N2.2] bound by purple composite-line circle, radius 0.25 mile, centered on above platform (18(58), 20(65)20 Istanbul)
Source: NGA U.S. Notice to Mariners · edition: 2Ed. 7/28/12
Reference information — always verify against official Notices to Mariners before navigation.