Chart correction 15/21 — chart 55160
55160 2Ed. 6/1/96 LAST NM 50/20 15/21 Relocate Buoy from 41°28.6′N 36°34.5′E to 41°26.3′N 36°33.6′E (See 49/20) Substitute Depth 10.9 meters for 28 meters 41°07.0′N 37°24.1′E and extend depth contour (20-meter) and blue tint N to enclose Depth 93 meters for 113 meters and enclosing depth contour (200-meter) 41°09.2′N 37°23.6′E and extend depth contour (100-meter) N to enclose Change Light to Fl W 3s 10m 10M AIS 41°03.6′N 37°30.7′E Light to Fl W 5s 13m 10M AIS 41°00.9′N 37°52.0′E Add Depth 35 meters enclosed by depth contour (50-meter) centered 41°08.2′N 37°23.9′E Depth 42 meters enclosed by depth contour (50-meter) centered 41°11.1′N 37°51.1′E Depth 63 meters 41°08.5′N 37°25.1′E and extend depth contour (100-meter) N to enclose (23(153), 30(191)17, 8(29)21 Istanbul; 11(1136)12, 36(4140)17 Taunton)
Source: NGA U.S. Notice to Mariners · edition: 2Ed. 6/1/96
Reference information — always verify against official Notices to Mariners before navigation.