Aviation safety investigations & reports

Unreliable Airspeed Indication involving Pilatus PC-12/47E, VH-OWI, near Albany, Western Australia, on 22 June 2020

Investigation number:
Status: Active
Investigation in progress


The ATSB is investigating an unreliable airspeed indication involving a Pilatus PC-12/47E, VH-OWI, near Albany, Western Australia, on 22 June 2020.

During descent, the pilot detected an airspeed mismatch between the pilot and co-pilot primary flight displays (PFD) and elected to return the aircraft to Jandakot.

As part of the investigation the ATSB will speak with the crew, obtain maintenance and inspection records and gather additional information.

A report will be released 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 appropriate action can be taken.

General details
Date: 22 June 2020   Investigation status: Active  
Time: 2155 AWST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): near Albany   Investigation phase: Evidence collection  
State: Western Australia   Occurrence type: Avionics/flight instruments  
  Occurrence category: Incident  
Report status: Pending   Highest injury level: None  
Anticipated completion: 4th Quarter 2020    

Aircraft details

Aircraft details
Aircraft manufacturer Pilatus Aircraft Ltd  
Aircraft model PC-12/47E  
Aircraft registration VH-OWI  
Serial number 1232  
Operator Royal Flying Doctor Service of Australia (Western Operations)  
Type of operation Medical Transport  
Sector Turboprop  
Damage to aircraft Nil  
Departure point Jandakot, Western Australia  
Destination Albany, Western Australia  
Last update 30 June 2020