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NEWORLEANS - Tuesday marked the seventeenth day since Terrilyn Monette was last seen leaving a Lakeview bar.

The search for the Jefferson Parish school teacher and her missing car entered a new, more intense phase when divers and better sonar equipment were brought in.

Texas EquuSearch used a crane to launch a boat equipped with the new sonar into Bayou St. John near Filmore Avenue.

The sonar now on board can search water up to 1,000 feet deep (which is what Equusearch used to search for Natalie Holloway in Aruba.) The water in the bayou is 14 to 15 feet deep.

The new equipment will give the team a better sense of exactly what is under the water.

A couple of vehicles were discovered in the bayou, but Eqquusearch founder Tim Miller said he has low confidence that any are Monette's 2012 black Honda Accord.

'Instead of sending divers down on every vehicle, we know it's going to be very, very dangerous...because if vehicles are rusted away and there is a chance of them getting caught up in them and stuff. And then we can determine which ones can be pulled and which ones just need to stay. If we start pulling real old ones, they're going to fall apart. We're going to make a bigger debris field. Some of them are just not going to be feasible. But, we're going to determine that. Bottom line, we're here for Terrilynn,' Miller said.

On Monday, the New Orleans Police Department said that based on surveillance video, Monette appeared to have left Parlay's by herself. There has been no sign of her or her car, which sports license plate number WUN494.

Anyone with information on the case is asked to call Crimestoppers at 822-1111.

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