Implementing Downlink Aircraft Parameters

Transcription

1 Implementing Downlink Aircraft Parameters

2 BACKGROUND

3 Objective DAP usage for LVNL Downlink of Aircraft Parameters (DAP) through Mode-S Enhanced Surveillance (EHS) could assist to further improve Safety and Efficiency of the ATM system.

4 What is DAP? Selected aircraft parameters that can be downlinked from aircraft to ground, providing information on the state of the aircraft and the intent of the pilot Downlink Aircraft Parameters defined in AIC-A 01/05 Air traffic controllers can use aircraft data in addition to ground based data to further improve flight safety and efficiency Pilots and Air Traffic Controllers have the same aircraft information Transmission over Mode-S (Enhanced Surveillance) Secondary Surveillance Radar

5 Transmission of DAP Airside: EHS enabled transponder Defined DAPs Ground: Radar infrastructure EHS enabled Radar tracker server EHS enabled DAPs in HMI integrated

6 DAP for LVNL by

7 BUSINESS CASE FOR DAP

8 Level bust example A343 VHHH-EHAM B737 LGAV-EHAM No callsigns resemblance 05:41:44 ATCO A343 Continue to ARTIP, descend flight level two hundred, runway one eight centre 05:41:54 A343 ATCO Descend flight level two zero zero, continue to ARTIP and expect runway one eight centre 05:44:05 VKL B737 Descend flight level one eight zero 05:44:05 B737 ATCO Descend flight level one eight zero 05:47:39 ATCO sees A343 descent through FL196 and instructs A343 to remain at FL200 8

9 Investigation of the event Investigation focused initially on a blocking of double read back, RT recordings did not prove this Secondly the downlinked Mode S Selected Altitude sequence of the A343 was provided by the surveillance department. This showed a selected altitude of just after the instruction Continue to ARTIP, descend flight level two hundred, runway one eight centre Suspected pilot confusion on the instructed altitude (FL200) and the runway (18C) From Time To Time Selected alt 5:34:56 05:41: :41:55 05:47: :47:52 05:48: :48:13 05:49: :49:37 05:51: :51:26 05:54: :54:30 05:55: :55:33 05:58:

10 Number of level busts other traffic within reach - Aantal level busts met verkeer in nabijheid - jaar 2011 Aantal level busts separatieonderschrijding conflicterend verkeer 2 0 Amsterdam ACC Schiphol TWR-APP Eelde TWR-APP Beek TWR-APP Unit

11 DAP 4 LVNL Innovation & clear benefits Clear safety and efficiency benefits to the ATM system Using State-of-the-Art Technique DAP is mandated by ICAO (AIC-A 01/05) 97% of aircrafts in NL FIR below FL 245 equipped with an EHS transponder NLR HMI trial with LVNL air traffic controllers was successful Most reliable DAPs: Selected Altitude Magnetic heading Indicated Airspeed Collegue ANSP experience NATS Operational Review Introduction of Mode-S: extremely positive effect a net safety benefit....

12 ORIGIN OF DATA

13 Pilot s AP/FD Mode Control Panel The pilot will select the altitude cleared by ATC The selected altitude to be presented on the pilot s PFD and downlinked to the ground Altitude Window & Altitude Selector

14 Air Data IAS HDG IAS and HDG as measured by the aircraft No pilot interaction in deriving the data IAS and HDG to be presented on the pilot s PFD and downlinked to the ground

15 Pilot s Primary Flight Display Selected Altitude (Here: ft orfl120) Indicated Speed (Here: 279kt) Heading (white triangle) (Here: 275)

16 LVNL IMPLEMENTATION

17 DAP: Update the ATM system Selected Altitude or Pilot Selected Level (PSL), Provides pilots altitude intend To be used as a safety net; No replacement of clearance and readback! Confirms if the pilot follows the clearance Objective to use this DAP: Reduction of level busts Indicated Airspeed (IAS) Actual indicated speed of the aircraft Provides pilot and ATCO the same info Objective to use this DAP: Reduction of RT Magnetic Heading (HDG) Actual magnetic of the aircraft Provides pilot and ATCO the same info Objective to use this DAP: Reduction of RT

18 ACC HMI: Mode-S window Mode-S window in the interaction area Mode-S window to include: ACID Mode-A PSL HDG IAS Old Interaction Area New Interaction Area Mode-S Window

19 ACC HMI: PSL Alert in label Alert Algorithm: Checks PSL equal to EFL/SFL Graceperiod 15 seconds Alert presented next to EFL/SFL Alert consists of: PSL value aircraft Colour: Red On selected and unselected labels of flights UCO PSL alert unselected flight PSL alert selected flight

20 HMI Configurations Not UCO no EFL Warning selected UCO no warning No EHS data Warning unselected

21 SPL APP HMI To be prototyped and developed Includes the same DAPs as ACC Similar presentation to ACC with Mode-S Window and PSL alert Same algorithm on the PSL alert as ACC

22 APP PSL alert considerations EHRD traffic Alerting is not implemented for Rotterdam APP (RAP) When RAP not active, does APP need a PSL alert on EHRD traffic? Determine limits of PSL alert for APP TA and TL in the TMA How to determine whether PSL corresponds to QNH or Standard pressure? Barometric Pressure DAP cannot be used in alerting algorithm due to different implementation in Airbus and Fokker A/Cs Important training aspect: PSL alert is a safety net!

23 Planning Introduction ACC 26 July 2012 Introduction APP 2013 EU mandate EHS enable transponder new aircrafts in SES airspace Dec 2015 EU mandate EHS enable transponder existing aircrafts in SES airspace Jan 2017