Aeromar only issued a boarding pass for the first leg of my trip (PVR to Guadalajara). Without a boarding pass for the second leg (Guadalajara to Hermosillo) I was forced to hunt out the 2 nd carrier (Air Bus). Luckily I had enough time to go through the ticketing line and go back through Security to my connecting flight. Because the carrier for the connection was a different airline, Aeromar refused to issue a boarding pass. Luckily I only had carry on luggage or I would have missed my flight,