Incident at 51N045W


2010-10-12: UPDATE TSB: A10A0099: RJA262, a Royal Jordanian Airline Airbus 340-200, was en route from New York to Amman, Jordan at F350. ACA888, an Air Canada Boeing 767-300, was en route from Ottawa to London at F340. The flight crew of RJS262 requested F340 or F330 due to turbulence at which time Gander ACC advised that they were unable to issue the clearance due to lower traffic. The crew of RJA262 then advised that they were descending to F330 reporting that they were unable to maintain altitude due to technical reasons. Separation between the aircraft eroded to six minutes laterally between F350 and F330 in an area where 10 minutes lateral or 1000 foot vertical is required. Separation was restored when RJA262 reached F330. Gander ACC personnel are investigating in order to clarify whether the crew carried out the NAT contingency procedure prior to descending.
2010-09-24: RJA262, Airbus A340-200, enroute from New York (KJFK) to Amman (OJAI), requested clearance to 34,000 ft or 33,000 ft. due to turbulence at approximately 51N045W and was advised that the flight could not be cleared due to traffic. The pilot then advised they were descending to 33,000 ft. because they were unable to maintain altitude due to technical reasons. Traffic was ACA888, Boeing 767-300, enroute from Ottawa (CYOW) to London (EGLL) on the same track at 34,000 ft. with six minutes longitudinal separation. TSB Case Closed.


CADORS Number 2010A0984
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2010-09-21 - 05:26
Day or Night?
Fatalities 0
Injuries 0
Aerodrome ID
Aerodrome Name
Geographic Location Gander Oceanic, Atlantic Region, 51N045W
TSB Occurrence Number A10A0099
TSB Class of Investigation Class 5
AOR Number 124643-V2
Reported By NAV CANADA
Categories Turbulence encounter,Other,Airprox/TCAS alert/loss of separation/(near) midair collisions

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration
Foreign Registration
Country of Registration Hashemite Kingdom of Jordan
Occurrence Type Incident
Make  Silhouette image of AIRBUS
Model A340-200
Year Built
Engine Type Turbo fan
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number RJA262
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage No Damage
Fatalities 0
Injuries 0
Events Weather - clear air turbulence (CAT)/turbulence,Conflict - loss of separation,Alleged Canadian Aviation Regulations (CARs) infraction

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