Originally Posted by
RU4692
If you really wanted to split hairs you could argue how PPAS also increases airframe utilization in respect to inspections and depreciation. An extra .1 or .2 per leg eventually adds up towards hourly inspections. This extra time accumulates added costs Comair must eat in respect to time limited parts, such as overhaul of engines, and ultimately increases Comair's cost per flight.
If every regional in the Delta Connection network were forced to use the same rulebook, when it comes to PPAS, I would bet Comair's costs would more in line with it's competitors per flight hour.
PPAS is more efficient for Delta rather than for Comair. This is the double edged sword Delta likes to swing at Comair every time costs become an issue.
I would agree with you if every aircraft made it in for inspection at exactly 100 hours...but they don't. They start scheduling them to come in around 93, 94,95...it all depends on when it is done for the night and home in base. So it really does not matter if it gets inspected at 93.6 or 94.7 - cost is still the same.
Every airframe at Delta flies this way - I doubt they would do it if it increased the operating costs.