The most widely used version of the
F-35 still can’t fly in lightning, and despite hardware and software modifications, the Pentagon doesn’t have a path forward to lift ongoing flight restrictions.
In June 2020, the Pentagon’s
F-35 Joint Program Office instated flight restrictions for the F-35A conventional takeoff and landing variant after damaged tubes were found inside its key lightning protection system, the Onboard Inert Gas Generation System, or OBIGGS.
Air Force Times reported earlier this year that the program office could clear the fighter to begin flying within 25 miles of lightning after testing a fix for the OBIGGS system this summer. However, after assessing the hardware and software upgrades, the JPO has recommended flight restrictions remain in place, according to Chief Petty Officer Matthew Olay, an F-35 JPO spokesman.
“Due to additional findings earlier this year, this upgrade will provide an improvement, but is insufficient to lift the lightning restriction,” Olay told Breaking Defense. “Lightning restrictions will be lifted when all safety concerns are resolved or acceptably mitigated.”