Date & Time: Jan 2, 2015 at 0833 LT
Type of aircraft:
Saab 340
Operator:
Registration:
G-LGNL
Flight Phase:
Takeoff (climb)
Survivors:
Yes
Schedule:
Stornoway – Glasgow
MSN:
246
YOM:
23
Flight number:
BE6821
Region:
Europe
Crew on board:
3
Crew fatalities:
0
Pax on board:
26
Pax fatalities:
0
Other fatalities:
0
Total fatalities:
0
Captain / Total flying hours:
3880
Captain / Total hours on type:
3599
Circumstances:
At approximately 65 knots during an attempted takeoff in strong and gusty crosswind conditions, the aircraft swung to the left and departed the paved surface. The power levers were not selected to ground idle and the aircraft came to a halt with a collapsed nose landing gear, 250 meters after leaving the paved surface. While all 29 occupants were evacuated safely, the aircraft was damaged beyond repair.
Probable cause:
During the attempted takeoff, the rudder was central from 40 kt and remained so until approximately 65 kt. Between approximately 52 and 65 kt, the aircraft turned right slightly before it turned left sharply at approximately 65 kt. Given that the rudder was central, this change of direction might have been caused by one, or a combination of the following factors:
a. Differential braking
b. Asymmetric thrust
c. A change in wind speed and direction
d. A nose wheel steering input
Data from the FDR showed that thrust was applied symmetrically throughout the takeoff run, and the manufacturer did not consider that the data for longitudinal acceleration and indicated airspeed supported the use of differential braking.
Final Report:
G-LGNL.pdf439.78 KB