The ID of trash is 7, not 49. Depending on your need, you could do:
$untrashedPages = $pages->find("template=some-template, status<" . Page::statusTrash);
//$untrashedPages = $pages->find("template=some-template, has_parent!=7");
//$untrashedPages = $pages->find("template=some-template, has_parent!=" . $config->trashPageID);
FYI, statusTrash = 8192