Incident at IQALUIT NU (CYFB)


2003-04-23: Shortly after departing Iqualuit the crew of the HS 748 registered C-GTLD experienced an aileron problem requiring 45 degree left deflection of the yoke to maintain wings level. The cargo flight returned to Iqaluit with no further incident. An emergency was not declared. The cause of the problem is not known.
2003-10-14: UPDATE TSB Montreal reported that an aileron bracket was found cracked as well as another one on the rudder. This damage was caused by very strong winds while the aircraft control gust lock had inadvertently not been set. The company has published a maintenance directive # BAS MD 03-0001 adressing the requirement of special inspections.
2005-08-16: UPDATE Maintenance and Manufacturing reported that First Air found the left hand aileron lever assembly (control arm) cracked at one of the forward lever attach points to the aileron. With one of the forward attach points severed, the lever could deflect or was deformed enough, resulting in the abnormal control wheel offset. This was the first flight following blizzard conditions in Iqaluit. During the initial phases of the storm, the aircraft had been parked into wind. The operator could not confirm whether the wind had changed during the storm. An inspection had not been accomplished for high wind load damage to the aircraft, although the snow ingress inspections were completed. The initial report from the operator indicated that the damage appeared to be an overload rather than fatigue crack. All aircraft at the Iqaluit base were inspected with one other HS 748 showing incipient crack damage in the same area. Inspections at other First Air operating bases were reported and no damage found. First Air initiated an investigation concerning the in-flight problem, prepared a maintenance bulletin on the subject of returning aircraft back to service following storms and reviewed training content for this subject matter. Dependant on the investigation results, 'B' check content will be revised to include a detailed inspection of the lever attachment lug area. An SDR submission was requested by the PMI. The HS 748 aileron rigging is very critical per the aircraft maintenance manual.


CADORS Number 2003C0501
Occurrence Type Incident
Reported By Transportation Safety Board of Canada
Occurred At 2003-04-18 - 14:50
Day or Night? Day-time
Fatalities 0
Aerodrome ID CYFB
Aerodrome Name IQALUIT NU (CYFB)
Geographic Location Nunavut, Canada, North America, Prairie and Northern Region, Iqaluit
TSB Occurrence Number A03Q0044
TSB Class of Investigation Class 5
AOR Number
Reported By Transportation Safety Board of Canada
Categories System/component failure or malfunction [non-powerplant],Other

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration GTLD | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator FIRST AIR (107) Commercial
Make  Silhouette image of BRITISH AEROSPACE
Model HS 748 2A
Year Built 1973
Engine Type Turbo prop
Engine Model DART 534-2
Gear Type Land
Private No
Amateur Built No
Flight Number FAB
Flight Rule
CARS Subpart
Phase of Flight Climb
Damage No Damage
Fatalities 0
Injuries 0
Events Flight control systems (ailerons, rudder, rotors, flaps, main, tail),Diversion

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