Chart correction N21/24 — chart 44430
44430 4Ed. 05/30/15 LAST NM N18/24 N21/24 Substitute Depth 41 meters for depth 45 meters 55°39.3′N 20°46.7′E Add Depth 98 meters Wk [K26] 54°50.5′N 18°58.6′E Depth 96 meters Wk [K26] 54°50.0′N 19°00.1′E Depth 94 meters Wk [K26] 54°49.3′N 18°58.8′E Submarine pipeline [L40.1] with legend "CAUTION NO 1" joining 54°56.3′N 20°22.6′E 54°59.0′N 20°23.8′E 55°30.0′N 20°14.6′E 55°31.5′N 20°08.4′E (45(4749)23 St. Petersburg; 4(62, 63)24 Klaipeda)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 05/30/15
Reference information — always verify against official Notices to Mariners before navigation.