Incident at 57N 030W


2010-03-30: RCH3977, KC-135R, enroute from Mc Connell Air Force Base (KIAB) to Mildenhall Air Force Base (EGUN), was operating on cleared route OYSTR 55/50 56/40 57/30 57/20 SUNOT KESIX at 39,000 ft. The aircraft progressed 40W normally at 39,000 ft. but reported and confirmed at 41,000 ft. in the 30W position report. The aircraft climbed without ATC clearance. There was no traffic.


CADORS Number 2010A0261
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2010-03-30 - 03:49
Day or Night?
Fatalities 0
Injuries 0
Aerodrome ID
Aerodrome Name
Geographic Location Gander Oceanic, Atlantic Region, 57N 030W
TSB Occurrence Number
TSB Class of Investigation
AOR Number 117440-V1
Reported By NAV CANADA
Categories 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 the United States of America
Occurrence Type Incident
Operator State
Make  Silhouette image of BOEING
Model KC-135R
Year Built
Engine Type Turbo fan
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number RCH3977
Flight Rule
CARS Subpart
Phase of Flight Cruise
Damage No Damage
Fatalities 0
Injuries 0
Events Alleged Canadian Aviation Regulations (CARs) infraction,Conflict - potential

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