The US FAA has awarded Airsys ATM a contract to provide up to 105 more instrument landing systems (ILSs) for use across the country.
The FAA says the contract covers the acquisition of Mark 20A ILSs, adding that the "ultimate value" of the contract is $22 million.
"The new systems will dramatically improve the ability of pilots to land in poor visibility conditions and will also improve an airport's capacity," it says.
The agency adds that the contract is for Category I ILSs, which provide guidance down to authorised minimums of 200ft (60m) above a runway and a visual range down a runway of 2,400ft (730m).
Five systems will initially be deployed at Stennis International in Bay St Louis in Mississippi, Burlington Alamance in North Carolina, McCarren International and North Las Vegas in Nevada, and Zanesville Ohio.
The contract provides for up to 15 systems to be acquired in the first year and up to 45 in each of two option years, the FAA says. It adds that AirSys ATM previously supplied Mark 20 Category I, II, and III ILSs under a contract that expired in December 1999.