Chart correction N3/20 — chart 51109

51109 6Ed. 9/8/12 LAST NM N52/19 N3/20 Delete Pilot station symbol 41°08′55.9″N 8°44′23.6″W Submarine pipeline between 41°12′35.8″N 8°42′56.3″W 41°12′29.9″N 8°44′39.4″W Relocate Buoy “M1” from 41°12′26.5″N 8°44′45.0″W to 41°12′31.8″N 8°44′40.8″W Substitute Depth 24.5 meters Wk [K26] for 28 meters Wk 41°12′58.8″N 8°45′15.6″W Depth 4.7 meters enclosed by dotted-line circle [I4] for 6.3 meters 41°09′14.0″N 8°41′36.8″W Note: Blue tint and enclosing depth contour (10-meter) remain Add Submarine pipeline [L41.1] joining 41°12′36.0″N 8°44′48.0″W 41°12′41.4″N 8°44′31.8″W 41°12′41.4″N 8°42′55.8″W Danger circle “Obstn” [K40] 41°06′00.0″N 8°44′00.0″W (Plan) Delete Depth 2.6 meters 41°11′05.0″N 8°42′16.2″W Buoy “No 2” 41°10′49.0″N 8°42′30.3″W Buoy “No 4” 41°10′52.0″N 8°42′35.8″W Add Beacon “No 2”, can topmark, Fl(3) R 8s 2M 41°10′46.1″N 8°42′30.5″W Beacon “No 4” R, can topmark, Fl(2) R 5s 2M 41°10′51.7″N 8°42′36.2″W Depth 1.3 meters 41°08′45.0″N 8°39′25.1″W Depth 4.7 meters enclosed by dotted-line circle [I4] centered 41°09′14.0″N 8°41′36.8″W (11(353)12, 11(371)13, 5(187)16 Lisboa; PRT CH 26402)

Source: NGA U.S. Notice to Mariners · edition: 6Ed. 9/8/12

Reference information — always verify against official Notices to Mariners before navigation.