Chart correction 23/21 — chart 55040

55040 4Ed. 7/31/99 LAST NM 15/21 23/21 Add AIS [S17.1] to beacon 40°58.3′N 27°58.0′E AIS [S17.1] to light 40°58.1′N 27°57.7′E (13(53)21 Istanbul)

Source: NGA U.S. Notice to Mariners · edition: 4Ed. 7/31/99

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