Incident at CALGARY INTL AB (CYYC)

Summary

2003-08-07: UPDATE TSB reported that the Jetsgo McDonnell Douglas DC-9-83 (MD-83), C-GKLR, was operating as flight JGO 309 from Toronto, ON to Calgary, AB. JGO 309 had been cleared to maintain 5,000 feet ASL and was on vectors to intercept the localizer for the straight in ILS Runway 16 at Calgary. JGO 309 was observed by the arrival controller descending through 4,800 feet while in the vicinity of the Airdrie (CEF4) airport (elevation 3,648 feet ASL). The Controller advised the crew of JGO 309 that they were cleared to 5,000 feet and to return to that altitude. The lowest altitude achieved was 4,100 feet or approximately 550 feet AGL. Visual meteorological conditions prevailed at the time of the occurrence.
2003-07-09: JGO 309, an MD-83, was on approach to Calgary from Toronto when the crew descended below their cleared altitude. The flight was initially cleared to maintain 5,000 feet asl however, the Controller observed the aircraft descending below 4,800 feet and questioned the crew. They thought they were cleared to 4,000 feet. The flight was re-cleared to maintain 5,000 feet. The lowest altitude the a/c was observed on radar was 4,100 feet. A review of audio tapes indicate that the flight was cleared to 5,000 feet, which was read back properly by the flight crew. There was no operational impact, nor any other known or radar observed traffic in the area. Weather at YYC at the time of the occurrence was VFR.

Details


CADORS Number 2003C0907
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2003-07-07 - 17:40
Day or Night?
Fatalities 0
Injuries
Aerodrome ID CYYC
Aerodrome Name CALGARY INTL AB (CYYC)
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Vicinity of Airdrie
TSB Occurrence Number A03W0150
TSB Class of Investigation Class 5
AOR Number 30509
Reported By NAV CANADA
Categories Other
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration GKLR | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner CORPORATION JETSGO/JETSGO CORPORATION (JETSGO)
Operator CORPORATION JETSGO / JETSGO CORPORATION (12657) Commercial
Make  Silhouette image of DOUGLAS
DOUGLAS
Model DC9 83
Year Built 2001
Engine Type Turbo fan
Engine Make PRATT & WHITNEY
Engine Model JT8D-219
Gear Type Land
Private No
Amateur Built No
Flight Number JGO 309
Flight Rule
CARS Subpart
Phase of Flight Approach
Damage No Damage
Fatalities 0
Injuries 0
Events Alleged Canadian Aviation Regulations (CARs) infraction

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