Chart correction N37/23 — chart 54421
54421 7Ed. 09/25/21 LAST NM N22/23 N37/23 Delete Wreck 36°37′47″N 29°02′16″E Change Color of light to R 36°38′45″N 29°05′53″E Add "Unexploded ordnance" area [Kp] bound by purple dashed-line circle, radius 0.2 mile, centered 36°47′16″N 28°16′18″E (18(93), 19(98)23 Istanbul)
Source: NGA U.S. Notice to Mariners · edition: 7Ed. 09/25/21
Reference information — always verify against official Notices to Mariners before navigation.