Country
Crash of a De Havilland DHC-8-301 in Barranquilla
Date & Time:
Aug 23, 2008 at 1715 LT
Operator:
Registration:
HK-3952
Survivors:
Yes
Schedule:
Willemstad – Barranquilla
MSN:
169
YOM:
1989
Flight number:
ARE051
Crew on board:
5
Crew fatalities:
Pax on board:
26
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total hours on type:
6691.00
Copilot / Total hours on type:
781
Aircraft flight hours:
31260
Circumstances:
Following an uneventful flight from Willemstad-Hato Airport, the crew started the approach to Barranquilla-Ernesto Cortissoz Airport runway 23. The aircraft landed 770 metres past the runway threshold. After touchdown, the crew noticed vibrations coming from the right side of the aircraft when the right main gear collapsed. The aircraft slid for few dozen metres before coming to rest on the main runway. All 31 occupants evacuated safely and the aircraft was damaged beyond repair.
Probable cause:
Fracture of the ring of the mechanical stop of the shock absorber on the right main gear, turning the whole gear into a solid structure incapable of absorbing the landing loads, due to the non-incorporation of the Airworthiness Directive AD-2006-14 in the general repair of the main gear.
Final Report:
Crash of a De Havilland Dash-8-301 in Governor's Harbour
Date & Time:
Apr 20, 2007 at 1708 LT
Operator:
Registration:
C6-BFN
Survivors:
Yes
Schedule:
Nassau – Governor’s Harbour
MSN:
159
YOM:
1989
Flight number:
UP353
Crew on board:
3
Crew fatalities:
Pax on board:
48
Pax fatalities:
Other fatalities:
Total fatalities:
0
Aircraft flight hours:
29570
Aircraft flight cycles:
52653
Circumstances:
Following an uneventful flight (service UP353) from Nassau, the crew started the descent to Governor’s Harbour. After landing on runway 15, the left main gear collapsed. The aircraft slid for few dozen metres then turn slightly to the left and came to rest on the main runway. All 51 occupants evacuated safely, nevertheless, few passengers suffered minor injuries. The aircraft was damaged beyond repair.
Probable cause:
The probable Cause has been determined as an over-center Torque Link condition that culminated in a single cycle failure of the cylinder. The over center torque links condition occur as a result of the over extension of the shock strut.
Possible Contributory factors to the over extension of the shock strut includes:
Possible Cause for Loss of Damping
• The failure to install the dampening ring when the landing gear was assembled.
• Improper servicing of the landing gear shock strut with Mil-H-5606 hydraulic fluid plus nitrogen during initial assembly.
• Improper servicing of landing gear shock strut during line maintenance and inadequate post servicing follow up per AMM Chapter 12. See attached report Appendix A-30 From Bombardier
• Under-serviced shock strut (low oil volume)
• A broken damper ring
• No damper ring
• Disengaged damper ring.
Possible Contributory factors to the over extension of the shock strut includes:
Possible Cause for Loss of Damping
• The failure to install the dampening ring when the landing gear was assembled.
• Improper servicing of the landing gear shock strut with Mil-H-5606 hydraulic fluid plus nitrogen during initial assembly.
• Improper servicing of landing gear shock strut during line maintenance and inadequate post servicing follow up per AMM Chapter 12. See attached report Appendix A-30 From Bombardier
• Under-serviced shock strut (low oil volume)
• A broken damper ring
• No damper ring
• Disengaged damper ring.
Final Report:
