Chart correction N12/20 — chart 44240
44240 9Ed. 11/1/14 LAST NM N11/20 N12/20 Delete Buoy 63°28.6′N 21°35.1′E Buoy 63°35.7′N 21°51.3′E Buoy 63°36.1′N 21°50.4′E Buoy 62°40.7′N 20°52.6′E Buoy 62°19.9′N 21°04.6′E Relocate Buoy from 62°39.4′N 20°50.3′E to 62°39.2′N 20°51.3′E (15(161), 16(184, 187, 189)18 Helsinki)
Source: NGA U.S. Notice to Mariners · edition: 9Ed. 11/1/14
Reference information — always verify against official Notices to Mariners before navigation.