diff --git a/addons/mrp/mrp.py b/addons/mrp/mrp.py
index b49b99fd6e0..e99ad160eb6 100644
--- a/addons/mrp/mrp.py
+++ b/addons/mrp/mrp.py
@@ -1069,6 +1069,15 @@ class mrp_production(osv.osv):
             production.write({'state': 'confirmed'}, context=context)
         return 0
 
+    def action_assign(self, cr, uid, ids, context=None):
+        """
+        Checks the availability on the consume lines of the production order
+        """
+        move_obj = self.pool.get("stock.move")
+        for production in self.browse(cr, uid, ids, context=context):
+            move_obj.action_assign(cr, uid, [x.id for x in production.move_lines], context=context)
+
+
     def force_production(self, cr, uid, ids, *args):
         """ Assigns products.
         @param *args: Arguments
diff --git a/addons/mrp/mrp_view.xml b/addons/mrp/mrp_view.xml
index 17e5c1c51ef..622c2bb7a02 100644
--- a/addons/mrp/mrp_view.xml
+++ b/addons/mrp/mrp_view.xml
@@ -673,6 +673,7 @@
                 <header>
                     <button name="button_confirm" states="draft" string="Confirm Production" class="oe_highlight"/>
                     <button name="%(act_mrp_product_produce)d" states="ready,in_production" string="Produce" type="action" class="oe_highlight"/>
+                    <button name="action_assign" states="confirmed,picking_except" string="Check Availability" type="object" class="oe_highlight"/>
                     <button name="force_production" states="confirmed" string="Force Reservation" type="object"/>
                     <button name="force_production" states="picking_except" string="Force Reservation" type="object"/>
                     <button name="button_produce" states="ready" string="Mark as Started"/>
diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index f74aa4c4452..6b03904155a 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -1412,7 +1412,7 @@ class stock_production_lot(osv.osv):
         'name': fields.char('Serial Number', size=64, required=True, help="Unique Serial Number"),
         'ref': fields.char('Internal Reference', size=256, help="Internal reference number in case it differs from the manufacturer's serial number"),
         'product_id': fields.many2one('product.product', 'Product', required=True, domain=[('type', '<>', 'service')]),
-        'quant_ids': fields.one2many('stock.quant', 'lot_id', 'Quants'),
+        'quant_ids': fields.one2many('stock.quant', 'lot_id', 'Quants', readonly=True),
         'create_date': fields.datetime('Creation Date'),
     }
     _defaults = {