U.S. Air Force and Lockheed Martin has precautionarily suspended flight operations of 15 newly delivered F-35A stealth fighters following a manufacturing quality issue.
The grounding was enacted after a non-conforming insulation was found on coolant tubing carrying Poly-Alpha-Olefin (PAO) throughout the jet’s wings.
The flammable PAO is used for avionics cooling and poor insulation can
↧