Chart correction N31/22 — chart 55046

55046 5Ed. 08/04/12 LAST NM N22/22 N31/22 Add Buoy Y, pillar, "X" topmark, Fl Y 5s [Q130.6] 40°55′04″N 29°07′21″E Buoy Y, pillar, "X" topmark, Fl Y 5s [Q130.6] 40°54′25″N 29°08′07″E (21(78)22 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 5Ed. 08/04/12

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