Aviation occurrence briefs

Engine failure and forced landing involving Gippsland GA8, 50 km W of Canberra, ACT, on 30 April 2018

Number:
AB-2018-065
Status: Completed
Investigation completed

Brief

Occurrence Briefs are concise reports that detail the facts surrounding a transport safety occurrence, as received in the initial notification and any follow-up enquiries. They provide an opportunity to share safety messages in the absence of an investigation.

What happened

On the afternoon of 30 April 2018, a GippsAero GA8 Airvan was in cruise at 12,000 ft tracking toward Canberra, Australian Capital Territory when the aircraft lost engine power. There was one pilot and one passenger on board.

The pilot declared a MAYDAY to Canberra air traffic control (ATC) and was instructed to activate the emergency locator transmitter.[1] The pilot elected to land in a cleared paddock and conducted an emergency landing. During landing, the aircraft travelled through a fence (Figure 1) and struck a log and a depression in the ground, before stopping (Figure 2). The aircraft sustained damage to the propeller and landing gear as well as damage to the windscreen and fuselage from contact with the fence.

There were no injuries and the pilot contacted Canberra ATC, with the assistance of another aircraft flying in the vicinity, to advise of their safe landing.

Figure 1: Aircraft path across paddock

Figure 1: Aircraft path across paddock. Source: Copyright owner annotated by ATSB

Source: Copyright owner annotated by ATSB

Figure 2: Final position of aircraft including ground depression struck

Figure 2: Final position of aircraft including ground depression struck. Source: Copyright owner annotated by ATSB

Source: Copyright owner annotated by ATSB

Engineering inspection

The engine was removed and sent to an approved engine facility where it was disassembled and inspected. The inspection revealed that the engine crankshaft had separated between crank cheek number 8 and the number 5 connecting rod journal. A defect report for the crankshaft has subsequently been submitted to the Civil Aviation Safety Authority. The engine had completed approximately 1,055 hours since overhaul.

Safety message

Following a complete engine failure, a forced landing is inevitable. In this instance, the pilot followed standard emergency procedures to ensure a safe outcome was achieved.

About this report

Decisions regarding whether to conduct an investigation, and the scope of an investigation, are based on many factors, including the level of safety benefit likely to be obtained from an investigation. For this occurrence, no investigation has been conducted and the ATSB did not verify the accuracy of the information. A brief description has been written using information supplied in the notification and any follow-up information in order to produce a short summary report, and allow for greater industry awareness of potential safety issues and possible safety actions.

 

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  1. Emergency locator transmitter (ELT): a radio beacon that transmits an emergency signal that may include the position of a crashed aircraft, activated either manually or in the crash.
General details
Date: 30 April 2018   Investigation status: Completed  
Time: 1513 EST    
Location   (show map): 37 km W of Canberra    
State: Australian Capital Territory    
Release Date: 16 November 2018   Occurrence category: Incident  
Report status: Final    

Aircraft details

Aircraft details
Aircraft manufacturer GippsAero  
Aircraft model GA8  
Type of operation Aerial Work  
Sector Piston  
Damage to aircraft Minor  
Destination Canberra, ACT  
Last update 12 December 2018