JSON retorna apenas um row

Boa noite.

Estou com problemas para exibir dados pelo .JSON :( No banco de dados, tenho 3 rows (três resultados), mas, ele mostra somente um. Alguém poderia me dizer o que posso ter errado?

O JSON retornado é:

[
{
"id": 7,
"linha": "TESTE",
"chegada": "18:45:00",
"saida": "19:05:00",
"tempoTabela": "0:20",
"tempoParada": "TESTE",
"previsao": "TESTE",

 "status": "<span data-viagem=\"1\" class=\"label label-warning\"><i class=\"fa fa-clock\" title=\"Pendente\"></i> Pendente</span>"
 },
 {
 "id": 8,
 "linha": "TESTE",
 "chegada": "18:45:00",
 "saida": "19:05:00",
 "tempoTabela": "0:20",
 "tempoParada": "TESTE",
 "previsao": "TESTE",
 "status": "<span data-viagem=\"1\" class=\"label label-warning\"><i class=\"fa fa-clock\" title=\"Pendente\"></i> Pendente</span>"
 }
]

	O scrip:

 $.ajax({
 type: "GET",
 url: web +"include/ajax.php",
 timeout: 3000,
 datatype: 'JSON',
 contentType: "application/json; charset=utf-8",
 cache: false,
 beforeSend: function() {
 $('#loading').show();
 },
 error: function() {
 $('#loading').hide();
 },
 success: function(s) {
 var tr = s;
 $.each(tr,function(i, data){
 if(data.emptyDay) {
 var item = '<tr><td colspan="10" align="center"><i class="fa fa-times text-danger"></i> <b>'+ data.emptyDay +'</b></td></tr>';
 } else {
 var item = '<tr tr-id="'+ data.id +'"><td>#'+ data.id +'</td><td>'+ data.linha +'</td><td class="center">'+ data.chegada +'</td><td class="center">'+ data.saida +'</td><td class="center">'+ data.tempoTabela +'</td><td class="center">'+ data.tempoParada +'</td><td class="center">'+ data.previsao +'</td><td class="center">'+ data.status +'</td><td><i class="fa fa-pencil text-info" onclick="edit('+ data.id +')" style="cursor:pointer;"></i> | <i class="fa fa-times text-danger" onclick="deletes('+ data.id +')" style="cursor:pointer;"></i></td></tr>';
 }
 $("#trHorarios").html(item);
 finalizar_viagem(data.id);
 NProgress.done();
 });
 }
 });