ST. LOUIS (AP) — A tourist boat was on the lake despite wind speeds far exceeding allowable limits when it sank last month in Missouri, killing 17 people, according to a certificate of inspection made public Wednesday.

The Coast Guard announced that it has convened a formal Marine Board of Investigation into the July 19 accident involving a Ride the Ducks of Branson duck boat. The vessel sank at Table Rock Lake near Branson during a storm.

A news release announcing the investigation included a link to the certificate of inspection issued by the Coast Guard on Feb. 7, 2017. The document shows t...