Kinda.

The original Pacific Southwest Airlines was acquired (or merged, I dunno) with US Airways a while back, which gave Airways rights to all of the trademarks of the original PSA for ten years.

At the end of that ten years, rather than let that trademark out into the Public Domain (how many reincarnations of Eastern or Pan Am have there been?) Airways renamed one of its subsidiaries to PSA, just the letters, not the actual name, so as to maintain the rights to the PSA trademark.

That subsidiary was originally named Jetstream International Airlines, which is where the JIA and JS codes come from.


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