EUROCONTROL Safety Alerts

Description EUROCONTROL's Safety Alert service was discontinued in 2014 but the alert content is retained here on SKYbrary for reference. Safety Alerts were generated to inform aviation professionals of important safety matters that had been identified. There were three types of Safety Alert: Safety Warning Message: RED ALERT - an issue of immediate safety concern. Safety Reminder Message: BLUE ALERT - a known issue which requires renewed awareness, and Request for Support Message BROWN ALERT - an issue for which the community is seeking a solution. Safety Warning Message Safety Reminder Message Request for Support Message Avoidance of High Altitude Ice Crystal Icing Conditions - FAA Airworthiness Directive, No 2013-24-01 - Potential Implications for ATC Aircraft Mode S Transponders - Incorrect and Missing Data - EASA Safety Information Bulletins Aircraft Altimeter Failure Last-Minute Postponement of changes to SPAIN AIP AIRAC AMDT 09/10 Affecting Barcelona and Valencia Emergency Descent in High Traffic Density Situations FANS CPDLC: Erroneous ATC Log Data Presentation Maritime kite flying incident Misuse of Lasers - Illumination of Aircraft and ATC Towers Interference on 1030 MHz Funkwerk Avionics TRT600 Transponders Funkwerk Avionics TRT800 Transponders TCAS RAs Generated due to Transponder Testing on the Ground Embraer 135, 140, 145, Legacy - Inadvertent Change of Radio Frequencies or Placing Transponder into Standby Mode Level Restrictions - Amendment to ICAO PANS-ATM Loss of Functionality of ACAS Safety Alert Unable to Establish Radio Contact Update on Erroneous '0607' squawk ATC Loss of Transponder Signal Descent to Initial Approach Level - Radar Vectoring Rockwell Collins TPR-901 Transponder Deviation from ATC Procedures - Lateral Deviations from SIDs Unauthorised Penetration of Airspace Runway Incursion, Taxi to Holding Position Avoiding Action Phraseology Surveillance: anomaly on Mode-S transponders Undetected Simultaneous Transmissions Use of AT PILOTS DISCRETION and WHEN READY - verbal climb and descent clearances Adverse weather deviations - ATC clearance and pilot and controller actions Altimeter setting error during climb out Lessons Learned from a Power Outage Incident Misuse of International Aeronautical Emergency Frequency 121.5 MHz ICAO Aircraft Operator and Radiotelephony Designators and Abbreviation of ‘Type C’ Call Signs Interceptions of Civil Aircraft - Operation of SSR and ACAS II Pilot actions on completion of an adverse weather deviation - ATC clearance ANSP Preparation for Emergency, Degraded modes of Operation and Unusual Situations Runway Incursion Prevention - Runway-holding Position, Stop Bars and ATC Clearance Operation of SSR Mode C by General Aviation VFR Recreational Flights Abbreviation and Misinterpretation of 'Type c' Call Signs Own Separation Between IFR Flights in VMC and Interactions with ACAS II Operations Use of Decision Altitude (Height) in Continuous Descent Final Approaches Non ACAS-Equipped Aircraft Operations S-Band Primary Surveillance Radar: Co-existence issues with 2.6 GHz Transmissions Missed Approach RTF Communications Coordination in respect of aircraft in state of emergency Distance to Touchdown Operational Error in European RVSM Airspace CPDLC Incorrect Call Sign on Log-on 8.33 kHz above FL195 TCAS II RA at Very Low Altitude Similar Call Signs Misinterpretation of TCAS RA Aural Annunciation Messages EUROCONTROL Mode S and ACAS Programme Advice Holding Position at Runway/Runway Intersection Wake Vortex Aspects of A380 aircraft Wrong reaction to “Adjust Vertical Speed” RA Descent below Glide-Path Changes to the indication of VHF channels in radiotelephony Rate of climb within last 1000 ft before cleared level Safety occurrences during on-the-job training Non-compliance with ATC Procedures in low traffic periods Hand-over/take-over of operational positions Aircraft Turn Performance - Early Turn Use of aerodrome Tower VHF frequency by vehicle drivers involved in runway operations Post-incident withdrawal of air traffic controllers from control positions Runway Incursion Prevention - Aerodrome Stop Bar Operating Policy Passing of level information when providing Traffic Information Reduced Runway Length Operations during Construction/Work In Progress - ATIS and Radiotelephony Messages Handover/Takeover of Operational ATC Working Positions Operator Errors relating to P-RNAV operations - informing hazard analyses in support of safety case development Briefing and Provision of Operational Aeronautical Information to Air Traffic Controllers IFR Aircraft Operations Below RVR Minima Sector Over-Deliveries Due to Non-Adherence ILS Signal Protections Increasing Range of Speeds for Same Aircraft Type Level Bust with more than 1000 ft SID Confusion Guarding 121.5 MHz Deviation from ATC Clearance - Parachute Dropping