Aviation safety investigations & reports

Rotor malfunction involving Eurocopter Deutschland BO105 CBS-5, registration VH-NVH, at Archerfield Aerodrome, QLD on 19 August 2021

Investigation number:
Status: Active
Investigation in progress


The ATSB has commenced a transport safety investigation into a fractured rotor blade on a Eurocopter Deutschland GMBH BO105 CBS-5, registration VH-NVH, near Archerfield Aerodrome, Qld, on 18 August 2021.

After take-off, the crew detected abnormal airframe vibration and returned the aircraft to Archerfield. The post-flight inspection revealed a crack in one of the main rotor blades. The investigation is continuing.

The evidence collection phase of the investigation will include examination of the rotor blade, a review and examination of maintenance records and the gathering of any other relevant evidence. Examination of the blade will be conducted at the Airbus Helicopter facility in Donauwoerth, Germany under the supervision of an accredited representative from the German Federal Bureau of Aircraft Accident Investigation (BFU).

A report will be published at the conclusion of the investigation. Should a critical safety issue be identified during the course of the investigation, the ATSB will immediately notify relevant parties, so that appropriate safety action can be taken.

General details
Date: 19 August 2021   Investigation status: Active  
Time: 0400 (AEST)   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): Archerfield Aerodrome   Investigation phase: Evidence collection  
State: Queensland   Occurrence type: Propeller/rotor malfunction  
  Occurrence category: Incident  
Report status: Pending   Highest injury level: None  
Anticipated completion: 2nd Quarter 2022    

Aircraft details

Aircraft details
Aircraft manufacturer Eurocopter  
Aircraft model BO105 CBS-5  
Aircraft registration VH-NVH  
Serial number S 923  
Type of operation Aerial Work  
Sector Helicopter  
Damage to aircraft Nil  
Departure point Archerfield Aerodrome, Queensland  
Destination Archerfield Aerodrome, Queensland  
Last update 22 March 2022