Incident at GANDER INTL NL (CYQX) (Conflict - loss of separation, ATS operating irregularity)


2001-11-02: TSB Update Nov 2, 2001. A01A0133: LTU8605, a B767 was en route from Varadero to Stuttgart at FL350 with an estimate passed from New York ACC to Gander ACC for 44N/50W and 47N/40W at 0114 UTC and 0203 UTC, respectively. DAL94, a B767 was en route from New York to Barcelona at FL350 was estimating 45N/50W and 47N/40W at 0139 UTC and 0225 UTC, respectively. At 0127 UTC, LTU8605 reported 44N/50W, 13 minutes later than the estimated time. Longitudinal separation between the two aircraft eroded to 8 minutes where, because of converging tracks, 15 minutes was required. Gander ACC instructed LTU8605 to climb to FL360 restoring required vertical separation of 1000 feet. New York Centre is investigating the incident.
2001-10-30: LTU8605 B767 enroute Varardero Cuba to Dusseldorf pos 44N50W 0114Z and 47N40W 0203Z (New York Estimate) DAL94 B767 enroute New York to Barcelona 45N50W 0139Z and 47N40W 0225Z (Gander Estimate) LTU8605 reported 44N50W at 0127Z. With less than required separation, action was taken to climb LTU8605 to FL360, completed at 0143Z. TSB Case Closed. More info to follow.
2001-12-03: Update Dec 3, 2001 Aviation Enforcement. Occurred in Oceanic airspace. The New York controller gave an incorrect estimate to Gander. Nav Canada advises that New York was looking into the matter.


CADORS Number 2001A0669
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2001-10-30 - 01:27
Day or Night?
Fatalities 0
Aerodrome ID CYQX
Aerodrome Name GANDER INTL NL (CYQX)
Geographic Location Newfoundland and Labrador, Canada, North America, Atlantic Region, Gander Oceanic
TSB Occurrence Number A01A0133
TSB Class of Investigation Class 5
AOR Number 18461
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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