Chart correction N52/21 — chart 44447
44447 1Ed. 04/23/16 LAST NM N47/21 N52/21 Relocate Buoy "No 12" from 55°42′36.0″N 21°06′57.6″E to 55°42′39.6″N 21°06′58.8″E Buoy "No 14" from 55°42′28.1″N 21°07′02.1″E to 55°42′28.8″N 21°07′04.8″E Buoy "No 16" from 55°42′03.8″N 21°07′22.1″E to 55°42′05.4″N 21°07′24.0″E (10(195-197)21 Klaipeda)
Source: NGA U.S. Notice to Mariners · edition: 1Ed. 04/23/16
Reference information — always verify against official Notices to Mariners before navigation.