Not really. Those counts include totally unrelated components (like drivers) which you can optionally turn off, and just forget about.
Whereas the total count for the jet code is (I presume) of highly relevant code all around. It's not like it has 100 video drivers code included, and support for 2000 network cards, or several filesystems.
Linux kernel 2.6.35 13.5 million lines of code
Windows Server 2003 50 MLOC
Mac OS X 10.4 86 MLOC
Debian 5.0 324 MLOC
<EDIT>
And alternatively:
"if you bought a premium-class automobile recently, it probably contains close to 100 million lines of software code":
http://spectrum.ieee.org/green-tech/advanced-cars/this-car-r...