EWR DCL Flight Tests Capt Gregg Kastman MD-11 Flt Trng Sup EWR DCL Flight Tests - 6 Flights conducted 16 May – 6 Jun 13 - MD-11, Flight 1083, EWR-SDF, 0220z dept (2220L) - Telecon during ground ops - EWR Tower - UPS Ops - FAA Data Comm Team - Flight Crew 2 Flight 1, 16 May Ground Ops - Logon successful 3 Flight 1, 16 May Ground Ops - Logon successful - Initial Clearance, CAF 4 Flight 1, 16 May Ground Ops - Logon successful - Initial Clearance, CAF - During Taxi, Revised Dept Freq 5 Flight 1, 16 May Ground Ops - Logon successful - Initial Clearance, CAF - During Taxi, Revised Dept Freq - Airborne, auto log-off 15 min after T/O - At Cruise Flt, FL380 6 Flight 2, 22 May Ground Ops - Logon successful - Initial Clearance, CAF 7 Flight 2, 22 May Ground Ops - Logon successful - Initial Clearance, CAF - During Taxi, Revised Route (UM79) 8 Flight 2, 22 May Ground Ops - Logon successful - Initial Clearance, CAF - During Taxi, Revised Route (UM79) - Airborne, ATC logoff 5 min after T/O – no problems - No problems on FMC or ND approaching waypoints 9 Flight 3, 24 May Ground Ops - Logon REJECTED 10 Flight 3, 24 May Ground Ops - Logon REJECTED - Initial Clearance, UM79 11 Flight 3, 24 May Ground Ops - Logon REJECTED - Initial Clearance, UM79 - During Taxi, ATC unable to send UM80 - - Possible glitch in ARTCC rte build - Revised Rte clnc via voice Airborne, auto log-off 5 min after T/O 12 Flight 4, 29 May Ground Ops - Logon successful - Initial Clearance, CAF 13 Flight 4, 29 May Ground Ops - Logon successful - Initial Clearance, CAF - During Taxi, Revised Rte (UM80) - Scratchpad message 14 Flight 4, 29 May Ground Ops - Logon successful - Initial Clearance, CAF - During Taxi, Revised Route (UM80) - - Scratchpad message (PARTIAL F-PLN UPLINK) - Printer problems After airborne, ATC logoff 5 min after T/O 15 Flight 5, 5 June Ground Ops - Logon successful - Unable to receive DCL - Simultaneous message on both DSP 16 Flight 6, 6 June Ground Ops - Logon successful - ATC unable to send DCL - DTAP reboot after flight plan filed 17 General Observations - DCL has outstanding potential - Positives - - Route uplinks should reduce errors and time - Reduce voice requirements Challenges - Mitigate threat of misread messages - Crew workload during taxi - Comfort with CPDLC domestic operations 18 19