The two campaigns are: 0713 - Engine Protection sensor Update ISL-CM850 & 0508 - HI PSI Fuel Line R & R - ISC CM850.
The 0713 campaign requires a new Crankcase pressure sensor, Part Number 4954400, and a new valve cover pre-drilled to accept the above sensor, and a wiring harness jumper into the OEM wiring harness. Cummings ordered the parts for this one, and it turns out the incorrect valve cover & gasket arrived, there are three different ones. I don't know of any way to preclude this issue short of having them keep the coach and then order the parts, since you have 33% chance of getting the correct one first time out.
The C0905 fuel line bracket is the one everyone has had/has, and the parts are all standard. That one was completed before 11 am on the day I dropped the coach off. The parts for the other one are coming in from Colorado, and it might be finished on Monday. I have copies of all the paperwork, I could scan them in and e-mail if necessary, but just call your local dealer, and they can help you. You will need the Engine Serial Number, which is located on the pulley cover at the rear of the engine. Note mine was upside down, and I had to use a mirror to read, little print, so try to use a magnified mirror.
Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech