Incident at 52N/40W (TCAS alert)


1997-04-01: Both aircraft were operating on track ""B"". ULE849 a Boeing 767 with registration GUKLH was mach .80 at FL 340 estimating 52N/40W at 1741Z. KLM 691 a Boeing 747 with registration PHBUM was mach .86 at FL330 estimating 52N/40W at 1742Z. After passing 40W both aircraft received a resolution advisory. They were in contact with each other and decided that no action was required. ATC was advised after the aircraft passed 50W. Both aircraft were RVSM certified and in RVSM airspace.


CADORS Number 1997A0154
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1997-03-29 - 17:55
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Canada, Gander Oceanic, Atlantic Region, 52N/40W
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions
Events TCAS alert

Leave a Comment