Chart correction 51/21 — chart 54180
54180 7Ed. 01/21/06 LAST NM 43/21 51/21 Add Superbuoy Y, “X” topmark, Fl Y 3s [Q26] 45°10′01″N 14°24′02″E Light Fl(2) R 5s 8m 4M with obscured sector 096°-212° 44°07′26″N 15°02′29″E (10(2, 4)21 Split)
Source: NGA U.S. Notice to Mariners · edition: 7Ed. 01/21/06
Reference information — always verify against official Notices to Mariners before navigation.