Aviation safety investigations & reports

Boeing Co 747, ZS-SAN

Investigation number:
Status: Completed
Investigation completed


A Boeing 747 (B747) was en route between Sydney and Perth, tracking via air route Q158. The crew contacted Perth air traffic control at waypoint BIDDY, and were issued with a standard terminal arrival route (STAR) to Perth. The controller and the crew entered into a discussion regarding Perth STARs. The crew were asked if the aircraft was Area Navigation (RNAV) equipped and replied that the aircraft was not so equipped. Aircraft that are not RNAV equipped are not permitted to track on air route Q158 from Sydney to Perth.

The investigation subsequently revealed that the aircraft was RNAV equipped and therefore, permitted to use Q158. There was no infringement of separation standards.

Safety Action

As a result of this and a similar occurrence, the Bureau of Air Safety Investigation is currently investigating a perceived safety deficiency. The deficiency relates to the notification of approved long range navigation systems to ATS.

Any safety output issued as a result of this analysis will be published in the Bureau's Quarterly Safety Deficiency Report

General details
Date: 26 October 1998   Investigation status: Completed  
Time: 2300 hours WST    
Location   (show map): Biddy    
State: Western Australia   Occurrence type: Miscellaneous - Other  
Release date: 19 July 1999   Occurrence category: Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer The Boeing Company  
Aircraft model 747  
Aircraft registration ZS-SAN  
Type of operation Air Transport High Capacity  
Damage to aircraft Nil  
Departure point Sydney, NSW  
Departure time 1912 hours WST  
Destination Perth, WA  
Last update 13 May 2014