Chart correction N06/23 — chart 55049
55049 7Ed. 03/16/13 LAST NM N41/22 N06/23 (Panel B) Add Submarine pipeline [L40.1] with legend "Gas CAUTION NO 2" between 40°44′36.2″N 29°47′44.5″E 40°43′34.0″N 29°47′40.4″E (38(146)22 Istanbul)
Source: NGA U.S. Notice to Mariners · edition: 7Ed. 03/16/13
Reference information — always verify against official Notices to Mariners before navigation.