You Do Need power plug adapter while traveling from American Samoa to Sint Maarten.

Here is Why You Need An Adapter

The outlet and plug type used in Sint Maarten are A and B and in American Samoa are A, B, F and I. This is how they look like.

American Samoa

In American Samoa, outlets of type A, B, F and I are in use.

Type A

Type B

Type F

Type I

Sint Maarten

In Sint Maarten, outlets of type A and B are in use.

Type A

Type B