Chart correction N51/20 — chart 44240
44240 9Ed. 11/1/14 LAST NM N47/20 N51/20 Delete Depth 14.7 meters 62°36.1′N 20°50.2′E Substitute Depth 2.6 meters for 5.2 meters 63°04.6′N 21°03.2′E Add Depth 11.7 meters 62°36.3′N 20°51.1′E Depth 52 meters 63°07.3′N 19°50.1′E and extend depth contour (100-meter) W to enclose (22-23(243)14 Helsinki; FIN CH 956; SWE CH 429; UKHO ARCS 3839-0)
Source: NGA U.S. Notice to Mariners · edition: 9Ed. 11/1/14
Reference information — always verify against official Notices to Mariners before navigation.