From Alan Levin By Bloomberg News U.S. aviation regulators granted approvals that will allow some jetliners to operate within zones where new 5G wireless services are set to begin Wednesday, significantly reducing the potential impact on flight schedules. The Federal Aviation Administration said on Sunday airline manufacturers had shown that the mobile-phone signals won’t cause…

JERUSALEM—Israel has signed a deal with the United States to buy 12 Lockheed Martin Corp CH-53K helicopters and two Boeing Co KC-46 refueling planes, the Israeli Defense Ministry said on Friday, estimating the total price at around $3.1 billion. The deal, signed on Thursday, is part of an upgrade of Israel’s air force capabilities and…

HALIFAX—Cracks have been detected in the tails of all but two of the Canadian military’s 23 Cyclone helicopters, the Royal Canadian Air Force confirmed Thursday, adding two more aircraft to the previous list. The cracks were first detected in one of the maritime helicopters during a routine inspection on Nov. 26 at 443 Maritime Helicopter…

OTTAWA—The commander of Canada’s air force says he is concerned about the recent discovery of tail cracks in most of the military’s new Cyclone helicopters, and the need for “non-standard” repairs to each aircraft, but he remains confident in the fleet. The cracks are the latest in a growing list of issues with the Cyclones,…

HALIFAX—The Canadian military’s fleet of maritime helicopters is undergoing inspections and repairs after cracks were recently found in the tails of four CH-148 Cyclones. The Royal Canadian Air Force confirmed today in a statement that the Sikorsky-made aircraft have not been grounded or placed on an operational pause. The Air Force says cracks were first…

WASHINGTON—The U.S. State Department said on Friday it has approved the potential sale of 18 CH-53K heavy-lift helicopters to Israel in a deal valued at up to $3.4 billion. The package would include engines, navigation systems, weaponry, support equipment, spares, and technical support. Lockheed Martin Corp and General Electric Co are the prime contractors on…