I served in the United States Navy from '98 until March of 2005, and I've had a few encounters with "non-skid", myself. I was attatched to VFA-15 during deployments aboard the USS Theodore Roosevelt (CVN-71); and, the USS Enterprise (CVN-65). I was never ship's company; so, I couldn't ellaborate as to the maintenance procedures followed by the ABE's. As for myself, I was a "tron" , AT (Aviation Electronics Technician - Organizational); so I had absolutely no dealings with the care of the surface of the flight deck, aside from being part of many "scrubex" (evolution where the deck is hosed down with a cleaning agent, and scrubbed down with heavy push-brooms); but, I have a couple of nice "momentos" from when I had a close encounter with the deck. All I can say is, OUCH! )