Pilots of Indian carriers will soon have their airlines’ ‘standard operating procedures’ to fall back on when faced with satellite signal jamming or spoofing, problems that could affect an aircraft’s navigation systems. The Directorate General of Civil Aviation (DGCA) on Friday issued an advisory to pilots, airlines and air traffic control officials on handling Global Navigation Satellite System (GNSS) signal interference. Among other measures, airlines have been asked to report actual or suspected cases of GNSS interference to the regulator.