ASN Wikibase Occurrence # 89115
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Narrative:A BAe ATP cargo plane was involved in a takeoff incident at Helsinki/Vantaa Airport (HEL). The airplane was loaded with cargo and the centre of gravity was within the permitted limits.
|Monday 11 January 2010
British Aerospace ATP-F (LFD)
|West Air Sweden
|Year of manufacture:
|Fatalities: 0 / Occupants: 2
|Helsinki-Vantaa Airport (HEL/EFHK) -
| Take off
|Helsinki-Vantaa Airport (HEL/EFHK)
|København-Kastrup Airport (CPH/EKCH)
| Accident investigation report completed and information captured
No outstanding technical defects or faults concerning the aircraft had been noted. There were no other difficulties or problem areas – traffic or operational – to affect the implementation of the flight.
Due to the weather conditions at the time the commander ordered that the aircraft should be de-iced before take-off. Taking into account the fact that it was snowing, it was decided to perform two-stage de-icing, which meant that both type I (removal of ice, frost and snow) and type II (prevention of ice forming again) would be carried out on the aircraft.
After de-icing had been completed, SE-MAP requested permission to taxi out, and clearance was received to taxi to the holding point runway 22R for take-off. During taxiing out, the pre-take-off checklist was completed, which among other things included checks that the control surfaces had full and free movement. The co-pilot was the PF (Pilot Flying) for this particular flight.
When the aircraft had reached the calculated rotation speed (Vr), the PF pulled back the control column in order to rotate the aircraft but without any result. According to witness statements the control column was as far back as it could be, with no sign that the aircraft would leave the ground. The commander then aborted the take-off and the aircraft taxied in to the terminal again.
After parking, the load and its distribution were checked, but nothing abnormal was found. No other faults in the aircraft were found. The commander then cancelled the flight.
Causes of Incidents
The incidents involving elevator restrictions were caused by a phenomenon which, for unknown reasons, occurs following the use of anti-icing fluids containing thickening agents, on individual aircraft where the stabiliser and elevator are too close together. One contributory factor was the fact that there were shortcomings in that part of the aircraft's type certification exercises that concerned anti-icing.
| Final report
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