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Uberlingen: Bashkirian 2937 and DHL 611

Printed page 8. PDF page 10.

verbally acknowledged by the crew. At the same time (21:34:56 hrs) TCAS generated an RA ("climb, climb"). At 21:34:59 hrs, the CVR recorded the voice of the copilot stating: "It (TCAS) says (): "climb". The PIC replied: "He (ATC) is
Open final report at PDF page 10BFU AX001-1-2/02: collision near Ueberlingen

Uberlingen: Bashkirian 2937 and DHL 611

Printed page 49. PDF page 51.

preventive RA Monitor vertical speed Monitor vertical speed Corrective RA Descend, descend Climb, climb Strengthening RA Increase descend , Increase climb, Weakening RA increase descend increase climb Reversing sense RA Adjust vertical speed, Adjust vertical speed, adjust adj
Open final report at PDF page 51BFU AX001-1-2/02: collision near Ueberlingen

Uberlingen: Bashkirian 2937 and DHL 611

Printed page 50. PDF page 52.

the threat is issued. � If an advisory to climb is issued a synthetic vocal advisory "climb, climb" is generated and on the outer circumference of the vertical speed indicator a green arc from 1 500 to 2 000 ft/min
Open final report at PDF page 52BFU AX001-1-2/02: collision near Ueberlingen

Uberlingen: Bashkirian 2937 and DHL 611

Printed page 65. PDF page 67.

on the VSI/TRA (20 to 48 seconds prior to a possible collision). RA In case of an RA "climb, climb" the crew has to rapidly and smoothly obtain a rate of climb of 7.6 m/s (=1500 ft/min). The pointer of
Open final report at PDF page 67BFU AX001-1-2/02: collision near Ueberlingen

Uberlingen: Bashkirian 2937 and DHL 611

Printed page 66. PDF page 68.

BFU Bundesstelle f�r Flugunfalluntersuchung In case of an RA "climb, climb"" a green range from 7,6 m/s to 10 m/s is marked on the VSI/TRA. The range -30 m/s up to 7.6 m/s appears in red. Flight Crew Training Documents
Open final report at PDF page 68BFU AX001-1-2/02: collision near Ueberlingen

Uberlingen: Bashkirian 2937 and DHL 611

Printed page 70. PDF page 72.

the control column forward and the airplane was in the transition to descend � an RA "climb, climb" was generated by TCAS. CVR data shows that the copilot reacted to the RA with the comment: "It (TCAS) says `climb'". The
Open final report at PDF page 72BFU AX001-1-2/02: collision near Ueberlingen