Incident at YELLOWKNIFE NT (CYZF)

Summary

2005-02-16: While taxiing for departure at Yellowknife, the crew of the ATR 42, C-GSRR, returned to the ramp. A few minutes later, the crew advised of smoke in the cabin and requested Emergency Services. Emergency Services was not operating at the time, so the city fire department was called. Moments later, the crew advised that maintenance had everything under control and asked for responding assistance to be cancelled.
2005-02-25: UPDATE TSB reported that the First Air ATR-42, registration C-GSRR, operating as flight 7F6014, was taxiing to Runway 15 at Yellowknife for departure when the aft smoke warning appeared on the CAP. The aircraft stopped, both bleeds were turned off, ATC was advised and an emergency was declared. The aft smoke checklist was completed and the aircraft returned to the ramp without further incident. Maintenance examination determined that a coupling hose on the engine oil system vent had been removed during maintenance the night before, and when the hose had been reinstalled, the lip of the hose had curled inward and blocked the breather tube. This allowed oil to flow through the labyrinth seals during engine operation and resulted in smoke in the cabin. Approximately five litres of oil were lost from the engine (Pratt & Whitney-Can PW120) during taxi.
2005-02-18: UPDATE Maintenance and Manufacturing reported that a connector on the #2 engine breather line had been installed incorrectly, impeding the air flow from the engine. Disruption of the engine internal air flow released an oil mist into the engine bleed air for cabin air conditioning. The connector/hose was replaced followed by an engine ground run and an aircraft test flight.

Details


CADORS Number 2005C0357
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2005-02-16 - 13:10
Day or Night? Day-time
Fatalities 0
Injuries 0
Aerodrome ID CYZF
Aerodrome Name YELLOWKNIFE NT (CYZF)
Geographic Location Northwest Territories, Canada, North America, Prairie and Northern Region, Yellowknife
TSB Occurrence Number A05W0031
TSB Class of Investigation Class 5
AOR Number 53635-V1
Reported By NAV CANADA
Categories System/component failure or malfunction [powerplant],Other,Fire/smoke (non-impact)
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration GSRR | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner BRADLEY AIR SERVICES LIMITED - FIRST AIR
Operator FIRST AIR (107) Commercial
Make  Silhouette image of AEROSPATIALE
AEROSPATIALE
Model ATR 42 300
Year Built 1989
Engine Type Turbo prop
Engine Make PRATT & WHITNEY-CAN
Engine Model PW120
Gear Type Land
Private No
Amateur Built No
Flight Number FAB 6014
Flight Rule
CARS Subpart
Phase of Flight Taxi
Damage No Damage
Fatalities 0
Injuries 0
Events Engine - malfunction,Declared emergency/priority,Smoke/fumes - aircraft,Engine oil problem

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