Chart correction N06/22 — chart 54421

54421 7Ed. 09/25/21 LAST NM N03/22 N06/22 Add Buoy Y, spherical, “X” topmark, Fl Y 5s [Q130.6] 36°38′58″N 29°06′47″E Buoy Y, spherical, “X” topmark, Fl Y 5s [Q130.6] 36°37′48″N 29°05′58″E (51(170)21 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 09/25/21

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