Incident at EDMONTON INTL AB (CYEG) (Conflict - loss of separation, ATS operating irregularity)

Summary

2001-04-18: UPDATE NAV CANADA reported that the aircraft came within 700 feet vertical as WJA 140 passed over WJA 151.
2001-04-30: UPDATE TSB reported that WJA 151 was cleared to land on a visual approach to Runway 12 at the Edmonton International airport at 1322Z. WJA 140 was cleared to land on a visual approach on Runway 02 at 1324Z. WJA 140 did not slow down as expected during the final approach and at 1327Z, the Arrival Controller instructed WJA 140 to conduct a missed approach. Separation was lost when the distance between WJA 140 and WJA 151 became less than the required three miles, and the aircraft came within 700 feet vertical as WJA 140 passed over WJA 151. WJA 151 landed without further incident at 1327Z. WJA 140 was vectored to Runway 12 and landed without further incident at 1334Z.
2001-04-20: UPDATE ANS and Airspace reported that NAV CANADA will be conducting a Fact Finding Board and TSB may also investigate.
2001-04-17: WJA 151 was cleared to land visual on Runway 12 at Edmonton (YEG) at 1322Z. At 1324Z, WJA 140 was cleared to land visual on Runway 02 at YEG. At approximately 1327Z, the Arrival Controller instructed WJA 140 to pull up and a missed approach was conducted. WJA 151 landed at 1327Z without incident. WJA 140 was vectored to Runway 12 and landed without further incident at 1334Z. Separation was lost when the distance between WJA 140 and WJA 151 became less than the required 3 miles. The Arrival Controller regained separation by instructing WJA 140 to conduct a missed approach.

Details


CADORS Number 2001C0361
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2001-04-16 - 13:27
Day or Night? Day-time
Fatalities 0
Injuries
Aerodrome ID CYEG
Aerodrome Name EDMONTON INTL AB (CYEG)
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Edmonton
TSB Occurrence Number A01W0085
TSB Class of Investigation Class 5
AOR Number 14818
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions,ATM/CNS
Events Conflict - loss of separation,ATS operating irregularity


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