OpSpec D-485 lists every airplane by 'N" number and type. It shows the manufacture date of the airframe and the date it enters the Aging Aircraft Inspection and component retirement plan.
You can find all our OpSpecs on the CAL Flight Operations website under "Communications" and then E-Documents. It fits in to your iPad's iBooks nicely.
One of the CAL purchase agreement covenants with Boeing is that we only operate the aircraft 20 years and then we cut it up. Boeing wants to sell new airplanes. Take a look at the airplanes older than 20 years. They are all UAL, Inc. airplanes.
An airplane retirement schedule is sitting on Jeff's desk. You can bet "The J's" have seen it. Kind of makes sense why Pierce isn't in a big hurry and Heppner is.
Do the math, then you decide.