National Transportation Safety Board (NTSB) Chair Jennifer Homendy delivered a scathing rebuke of the Federal Aviation Administration (FAA) during public hearings on Wednesday, criticizing the agency for failing to act on known safety concerns before a deadly midair collision in January that killed 67 people near Reagan National Airport.

Federal investigators have confirmed that none of the eight people who died in last month’s Lake Tahoe boat capsizing were wearing life vests at the time of the incident.

Boeing (BA.N), opens new tab said on Tuesday it plans to make design changes to prevent a future mid-air cabin panel blowout, opens new tab like the one in an Alaska Airlines (ALK.N), opens new tab 737 MAX 9 flight in January that spun the planemaker into its second major crisis in recent years, News.az reports citing Reuters .