Signal jamming incidents a growing problem for NAIA
By Eileen Mencias
The International Civil Aviation Organization has urged the Philippines to address the problem of GNSS/GPS signal interference experienced by planes landing at Runway 24 of the Manila International Airport.
According to a paper presented by the Civil Aviation Authority of the Philippines’ Charlemagne Gilo at a regional meeting of the ICAO last March, the CAAP was still receiving reports of harmful interference to the global navigation satellite systems from various airlines as of the first quarter of the year.
The interference jams the navigation systems of planes, with pilots reporting shifts in the map on their navigation displays.
In the third quarter of 2016 alone, Philippine authorities received close to 50 reports of signal interference from airlines as they approach Runway 24. During the period, Cathay Pacific alone cited 35 incidents while Emirates reported five instances.
The signal interference on the GNSS/GPS has resulted in “missed approaches” to the runway.
Ground personnel said this was a recurring issue at the airport.
The CAAP paper narrowed down the possible cause for the jamming of the signals to cell towers and TV broadcasting stations.
“The agency in charge of identifying and mitigating sources of harmful interference in the Philippines is the National Telecommunications Commission (NTC), a separate government entity from the Civil Aviation Authority and thus reports of this nature are endorsed to that agency for proper action,” the CAAP report said.