From
Avweb's "
Avflash":
The Concorde is equipped with a visual warning system that alerts pilots of low tire pressure, but that system is not active at speeds of less than 10 knots or speeds above 135 knots. The landing gear is outfitted with water deflectors, which are made of fiberglass and designed to inhibit water from splashing into the jet engine intakes. The deflectors were the subjects of an optional Service Bulletin in early 1995, which Air France did not adopt, but which British Airways implemented on their Concordes.