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.
The American Airlines route was simple and availability showed online at BA.com so there was no reason to put in a call when I could book it online in seconds. I easily completed the booking and received my BA record locator instantly.