Chart correction 3554 — chart 3986
Chart 3986 [ previous update 3457/23 ] WGS84 DATUM Insert Tl Fl(3+1)18s10m10M L1 (a) 9° 44´·7N., 107° 00´·1E. Automatic Identification System, AIS, at light beacon (a) above
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.