Redundant flotation is the key feature of this air-holding tube. High-density, non-absorbent foam is packed into each chamber. In the rare event of a breach in the polyurethane fabric and a loss of air pressure, the packed foam maintains the chambers shape and 90% of it's flotation factor.
A record locator is an alphanumeric code, typically 6 characters in length, used in airline reservation systems to access a specific record.
A PNR (yes, passenger name record) is a standard term which has been used since time immemorial for the jumble of letter and numbers that are used to find your booking in an airline system. (Stuff all to with the 9/11 business-sorry!) This is also known as a locator - meaning is obvious.t's passenger name record (PNR) in airline industries, a passenger name record (PNR) is a record in the database of a computer reservation system (CRS).