"A meeting of all stakeholders, including the airlines was held, and it was communicated to them to not use the ATC tower frequencies for testing of an aircraft," said an airport source.
With the investigation into the missing radio frequency at the new Air Traffic Control (ATC) tower at Mumbai airport leading nowhere, the authorities have recently asked all the airlines to not use the ATC radio frequency to check an aircraft.
"A meeting of all stakeholders, including the airlines was held, and it was communicated to them to not use the ATC tower frequencies for testing of an aircraft," said an airport source.
The mysterious incident happened late in December last year, when the radio frequency at which the ATC tower communicates with the pilots in a plane remained affected for an entire day due to some "external" factor. The ATC officials immediately shifted to a back-up frequency, which prevented any communication problem. The incident, however, would have taken a more serious turn had the back-up radio frequencies malfunctioned at the time.
The frequency returned a day later. One of the possible theories is that an Air India plane parked in one of the hangers inside the airport led to the frequency disturbance, but there there is no proof. On its part, Air India did not accept or gave any indication that the problem was with their aircraft.
A complaint regarding this was lodged with the Wireless Planning and Co-ordination (WPC) of the Ministry of Communication. The WPC was tasked with the analysis of specific complaints of harmful interference in reception of radio emissions, conducting investigations and gathering data through the process of extensive radio monitoring for suitable remedial actions.
Airport Authority of India (AAI) chairman RK Srivastava, who was in Mumbai on January 12 when dna published the report about the mysterious missing frequency, had asked the top officials in the city to investigate the case and submit a report. The Air India spokesperson refused to comment.
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