Chart correction 23/21 — chart 91407
91407 2Ed. 12/18/76 LAST NM 24/16 23/21 Substitute Depth 6 3/4 fathoms for 7 1/4 fathoms 13°11′16″N 123°47′16″E Depth 1 fathom for 3 1/2 fathoms 13°10′43″N 123°45′34″E and extend depth contour (3-fathom) E to enclose Depth 3 fathoms for 5 3/4 fathoms 13°08′49″N 123°46′43″E and extend depth contour (3-fathom) NE to enclose Add Submarine cable [L30.1] joining 13°10′14″N 123°45′08″E 13°10′35″N 123°45′50″E 13°11′50″N 123°47′12″E (Plan A) Add Double solid line with land tint (breakwater) [F4.1] between 13°08′42.0″N 123°45′38.4″E 13°08′42.0″N 123°45′40.0″E (2(45, 47, 49)16 Manila)
Source: NGA U.S. Notice to Mariners · edition: 2Ed. 12/18/76
Reference information — always verify against official Notices to Mariners before navigation.