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At about 1410 EST, on 30 April 2011, the crew of an Aerospatiale AS350FX2 helicopter registered VH-RTV (RTV) was replenishing gas well-head inhibitor tanks using sling load operations from Ballera Airport, Queensland. During one such operation to a well-head that was surrounded by water, the tail rotor blades struck two pipes that extended above the other pipe-work. At the time, the pilot was descending the helicopter prior to releasing the sling. Both he and the crewman were focusing on maintaining clearance from other parts of the well-head and neither saw the two pipes that the tail rotor struck.

Immediately following the occurrence, the operator introduced procedures which specifically addressed inhibitor tank replenishment to supplement the external and sling load procedures which were already in place.

Download Final report
[ Download PDF: 4.28MB]
 
 
 
 
General details
Date: 30 April 2011 Investigation status: Completed 
Time: 17:21 EST Investigation type: Occurrence Investigation 
Location   (show map):8 km north-east of Ballera Occurrence type:Collision with terrain 
State: Queensland Occurrence class: Operational 
Release date: 12 September 2011 Occurrence category: Accident 
Report status: Final Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: Aerospatiale Industries 
Aircraft model: AS350 
Aircraft registration: VH-RTV 
Serial number: 1290 
Type of operation: Aerial Work 
Sector: Helicopter 
Damage to aircraft: Serious 
 
 
 
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Last update 16 November 2015