Chart correction N52/23 — chart 55047

55047   9Ed.  11/08/14  LAST  NM  N50/23  N52/23 Delete Buoy   41°02′01.6″N  28°59′48.6″E Add Buoy YB, pillar, double cone topmark points downward, VQ(6) + L FI(2) W 10s [Q130.3]   41°02′19.1″N  29°00′13.9″E (25-26(125), 33(163)23 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 9Ed. 11/08/14

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