Pratt & Whitney, the sole supplier of engines for the F-35 Joint Strike Fighter, has purged its inventory of titanium from a key supplier after concerns were raised in May over the origin of the material. The issues caused Pratt to delay the delivery of F135 engines to JSF prime contractor Lockheed Martin, a hold that continues at the direction of the Pentagon’s F-35 joint program office while the company works through a separate engine fire incident that occurred at...
