Chart correction N18/22 — chart 51141
51141 1Ed. 01/29/11 LAST NM N02/22 N18/22 Change Designation of beacon "R5.1" to "R5-1a" 38°29′10.9″N 8°44′29.6″W (See N52/21) (2(135)22 Lisboa) NM 18/22 SECTION I I-1.4
Source: NGA U.S. Notice to Mariners · edition: 1Ed. 01/29/11
Reference information — always verify against official Notices to Mariners before navigation.