Chart correction N31/23 — chart 44187

44187   3Ed.  09/03/16  LAST  NM  N17/23  N31/23 Add Light Q(3) W 10s to buoy   59°40′58″N  18°59′36″E Light Q(3) W 10s to buoy   59°40′42″N  18°58′41″E Light QR to buoy   59°40′41″N  18°59′02″E (968(17671)23 Norrkoping)

Source: NGA U.S. Notice to Mariners · edition: 3Ed. 09/03/16

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