simple "SAVE" -- C# ASP.net MVC4 ?

Below runs, but does not insert the two new records.

How can I fix ?

Steps
 1. go to http://localhost:63802/C21/MAINT_WORK_REQ/test1
 2. below code runs
 3. refresh database
 4. below new records do NOT appear

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using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MWR.Models;

namespace MWR.Areas.C21.Controllers
{

    public class MAINT_WORK_REQController : Controller
    {
        private MVC_testEntities db = new MVC_testEntities();

        public ActionResult test1()
        {
            //create First Record
            MAINT_WORK_REQ mwr1 = new MAINT_WORK_REQ();
            mwr1.ProgramID = "1";
            mwr1.ProjectID = "1";
            mwr1.CreatedBy = "1";
            mwr1.LastModifiedBy = "1";
            mwr1.HSS_FWD = true;
            mwr1.HSS_INB = false;
            mwr1.HSS_OUTB = true;
            mwr1.BODYSTA_FWD = true;
            mwr1.BODYSTA_BOT = true;
            mwr1.BODYSTA_TOP = true;
            mwr1.EngineerRequired = true;

            //create Second Record
            MAINT_WORK_REQ mwr2 = new MAINT_WORK_REQ();
            mwr2.ProgramID = "1";
            mwr2.ProjectID = "1";
            mwr2.CreatedBy = "1";
            mwr2.LastModifiedBy = "1";
            mwr2.HSS_FWD = true;
            mwr2.HSS_INB = false;
            mwr2.HSS_OUTB = true;
            mwr2.BODYSTA_FWD = true;
            mwr2.BODYSTA_BOT = true;
            mwr2.BODYSTA_TOP = true;
            mwr2.EngineerRequired = true;

            //add both records
            db.SaveChanges();

            return View(db.MAINT_WORK_REQ.ToList());
        }