A deadly crash of a Tesla in autopilot mode last year is prompting federal safety regulators to recommend California move faster to repair highway safety barriers.

The National Transportation Safety Board says that state officials failed to fix a highway safety barrier before in deadly crash in March 2018 that killed an Apple engineer out of Santa Clara County. The barrier had been damaged 11 days prior to the crash of a Tesla in autopilot mode.

The federal agency says it has also identified a fatal crash from 2016 in San Jose where a barrier remained damaged for over 44 days.

So far the California Department of Transportation has not yet commented on the report.