Chart correction N18/20 — chart 55045

55045 3Ed. 7/28/12 LAST NM N17/20 N18/20 Substitute Depth 14 meters for 17.7 meters 40°23′32″N 27°49′15″E Change Light to Fl R 5s 8m 5M AIS 40°23′13″N 27°48′18″E Add Submarine cable [L30.1] joining 40°30′16″N 27°31′34″E 40°30′01″N 27°32′41″E 40°29′13″N 27°34′55″E 40°29′07″N 27°35′08″E 40°28′55″N 27°35′09″E Submarine cable [L30.1] joining 40°35′28″N 27°32′53″E 40°35′23″N 27°32′47″E 40°35′08″N 27°32′53″E 40°33′05″N 27°32′16″E 40°31′58″N 27°31′19″E Submarine cable [L30.1] joining 40°42′46″N 27°18′59″E 40°37′53″N 27°26′00″E 40°36′49″N 27°28′22″E 40°36′52″N 27°31′49″E 40°36′47″N 27°32′05″E Light Fl R 3s 9m 2M, FL G 3s 9m 2M 40°54′09″N 27°28′08″E Anchoring prohibited area [N20] bound by purple composite-line circle, radius 0.3 mile, centered 40°22′11″N 27°48′35″E and add fishing prohibited symbol [N21.1] Anchoring prohibited area [N20] bound by purple composite-line circle, radius 0.3 mile, centered 40°22′33″N 27°48′07″E and add fishing prohibited symbol [N21.1] Submarine cable [L30.1] between 40°23′10″N 27°48′07″E 40°22′33″N 27°48′07″E (7(36), 28(139), 49(230)19 Istanbul; 3(326)20 Taunton; UKHO ARCS 1004-0; UKHO LL)

Source: NGA U.S. Notice to Mariners · edition: 3Ed. 7/28/12

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