Chart correction 4639 — chart 1420
Chart 1420 [ previous update 3455/23 ] WGS84 DATUM Insert / (a) 1° 28´·73S., 131° 00´·00E. Delete depth, 49, close NE of: (a) above
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.