WASHINGTON (AP) — Military air traffic controllers lost contact with an Army helicopter for about 20 seconds as it neared the Pentagon on the flight that caused two commercial jets to abort their landings this month at a Washington airport, the Army told The Associated Press on Friday.

Newark Liberty International Airport is one of the largest hubs of United Airlines , and the congested airport is also the Chicago-based carrier's biggest operational challenge.

The diversion of two commercial flights on May 1 has raised new questions about equipment and safety in some of Washington’s busiest airspace.

Approved by county supervisors Tuesday, the agreement formalizes a two-year pilot program that generated $1.2 million in revenue and brokers 1,890 transactions per month.

Hotel and airport employees will receive $22.50 an hour starting in July under the amendments, followed by an annual $2.50 increase over three years.

Reno-Tahoe International Airport is sharing new details and images for its billion-dollar MoreRNO expansion project.

Flights were briefly halted, delaying travel for thousands, as security forces swarmed into passenger terminals in an effort to assert order.

Thunderstorms spread throughout South Florida from Friday afternoon into the evening, forcing closures of North Perry Airport and at least one Broward County road until Saturday morning.