Bell 206L-4 Longranger IV, G-PTOO, 3 March 2011

From:
Air Accidents Investigation Branch
Published
10 December 2014
Category:
General aviation - rotorcraft
Report type:
Bulletin - Correspondence investigation
Date of occurrence:
3 March 2011
Aircraft type:
Bell 206L-4 Longranger IV
Location:
London City Airport
Registration:
G-PTOO

Bell 206L-4 Longranger IV, G-PTOO

Summary:

The pilot carried out a precautionary landing at London City Airport, after the onset of vibration during the cruise. Examination revealed that a bolt, securing balance weight assemblies to a tail rotor blade, had failed due to the formation of a crack in the bolt shank which propagated in fatigue. The helicopter manufacturer confirmed that this was the first reported occurrence of this nature relating to this design of tail rotor system.

Download report:

Bell 206L-4 Longranger IV, G-PTOO 07-11.pdf (323.50 kb)

Updates to this page

Published 10 December 2014
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