FAA

The airline has 30 days to respond.

New “safety measure” coincides with runway construction, agency says.

NTSB personnel are on the scene and beginning their investigation.

LaGuardia Airport is closed as investigators gather at the scene.

The incident happened earlier this week and was made public on Thursday.

Some crew members were not included in random testing pools, regulators said.

The FAA is planning to reduce flights at the airport this spring and summer.

Investigators pointed to low staffing levels and inadequate resources.

Border agents reportedly used the weapon to target suspected foreign UAVs.

Elected officials are pushing back on the FAA amid confusion and competing explanations.