Chart correction N11/21 — chart 54061
54061 13Ed. 12/14/13 LAST NM N7/21 N11/21 Delete Superbuoy ODAS 40°28′07.2″N 17°12′04.2″E Superbuoy ODAS 40°26′42.0″N 17°10′42.6″E Substitute Depth 5.3 meters Wk [K26] for 4.9 meters Wk 40°28′27.1″N 17°15′51.1″E Add Depth 10.7 meters 40°28′37.0″N 17°14′04.4″E (Plan B) Substitute Depth 5.3 meters Wk [K26] for 4.9 meters Wk 40°28′27.1″N 17°15′51.1″E Add Depth 4.1 meters Wk [K26] 40°28′19.1″N 17°15′19.2″E Depth 10.7 meters 40°28′37.0″N 17°14′04.4″E (2(16-18)21 Genova)
Source: NGA U.S. Notice to Mariners · edition: 13Ed. 12/14/13
Reference information — always verify against official Notices to Mariners before navigation.