Chart correction N6/21 — chart 57163
57163 4Ed. 5/1/10 LAST NM N5/21 N6/21 Add Submarine pipeline [L40.1] joining 4°18′58.2″N 8°21′57.0″E 4°19′06.6″N 8°21′57.3″E 4°20′08.7″N 8°20′37.5″E 4°20′36.5″N 8°18′49.9″E 4°21′08.9″N 8°16′45.3″E 4°21′24.6″N 8°16′32.7″E 4°21′39.2″N 8°16′31.1″E 4°24′36.4″N 8°17′25.0″E Suspended well [L21.1] (PA) 4°26′29.0″N 8°22′44.5″E Platform (lighted) “ADNH-B” [L2] 4°21′42.0″N 8°21′58.0″E (24(2695)17 Taunton; UKHO ARCS 3433-0)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 5/1/10
Reference information — always verify against official Notices to Mariners before navigation.