Aviation safety investigations & reports

Engine shut down involving Boeing 787, VH-VKK, about 370 km N of Guam, on 6 August 2016

Investigation number:
Status: Completed
Investigation completed

Final Report

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On the evening of 6 August 2016, Jetstar Airways flight JQ12, a Boeing 787 aircraft, registered VH‑VKK, departed from Tokyo, Japan on a scheduled passenger transport flight to the Gold Coast, Queensland. On board the aircraft were two flight crew, nine cabin crew and 309 passengers.

The aircraft was pushed back from the gate at Narita Airport, Tokyo, at 1133 UTC. About two and a half hours into the flight, cruising at FL 400, the flight crew were alerted to low engine oil pressure in the right engine. The flight crew performed the checklist actions, which led to shutting down the right engine. The captain identified Guam Airport as the nearest suitable airport, about 370 km to the south of their position. They descended the aircraft to FL 220 due to single engine performance limitations and diverted around some weather as they tracked towards Guam Airport. The captain reported that they made an uneventful one engine landing on runway 24 at about 1520 UTC.

On inspection, the right engine transfer gearbox was found to be fractured, which was the source of the loss of oil from the engine.

This incident highlights the importance of flight crew complying with checklist actions when dealing with a fault condition. Inflight, the crew did not have knowledge of the extent of the damage to the engine transfer gearbox. However, by following their training and checklist procedures, they reduced the risk of a potential escalation of the fault.


Short Investigations Bulletin - Issue 55

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General details
Date: 06 August 2016   Investigation status: Completed  
Time: 1400 UTC   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): Guam International Airport, N 370 km    
State: International   Occurrence type: Engine failure or malfunction  
Release date: 14 December 2016   Occurrence category: Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer The Boeing Company  
Aircraft model 787-8  
Aircraft registration VH-VKK  
Serial number 36237  
Type of operation Air Transport High Capacity  
Sector Jet  
Damage to aircraft Nil  
Last update 14 November 2018