Investors in British Airways owner International Consolidated Airlines Group (LSE:IAG) appear to be shrugging off the reported disruption created by the roll-out of 5G near airports in the United States.
In London, IAG shares were trading in positive territory - up 0.4% at 160.6p - but remain around 2.4% lower over the past week.
BA was among a number of airlines to ground flights this week on concerns that 5G signals may interfere with airplane systems, particularly those that assist landing in poor weather by telling pilots how far away the aircraft is from the ground.
Flights to US airports were cancelled as a precaution meanwhile telcos AT&T and Verizon agreed to delay switching on new 5G communications towers.
The 5G roll-out has had only minor impacts on air travel, according to a report in Reuters, as the US Federal Aviation Administration (FAA) issued to approvals allowing more low-visibility landings under the new conditions.
The FAA now allows around 62% of commercial planes to perform bad-weather landings at some airports with 5G, marking an increase from 45% previously.
American Airlines, a British Airways partner, said the signals had only a minor operational impact with some flights delayed and only four cancellations.
Previously, on Wednesday, BA cancelled flights from London to Boston, Chicago, Los Angeles, New York and San Francisco.
The 5G problem reportedly affected Boeing’s 777 and 747-8 jets in particular, and, some airlines shuffled their fleets to use alternative aircraft to fly potentially impacted routes.
Last week, airline bosses called for a 2 mile exclusion of 5G from runways at key airports.
Telcos like AT&T and Verizon, however, said that the equipment was safe and would not interfere with aircraft electronics.
The worries are related to the use of radar altimeters which help measure distance between from the plane to the ground and operate on the same frequencies as 5G.