Aviation safety investigations & reports

Boeing Co 747-438, VH-OJE

Investigation number:
199900153
Status: Completed
Investigation completed

Summary

After a Boeing 747 had landed on runway 34L the crew was instructed to taxi via runway 25 and taxiway Yankee (Y). Jeppesen Sydney terminal chart 10-9, dated 18 December 1998, was used to provide taxi guidance to the crew. That chart depicted taxiways G3 and Y leading off to the north of runway 25. However, the chart was ambiguous in that there was another letter "Y" displayed to the south of runway 25. The crew interpreted taxiway G3 to be taxiway Y on the basis of that information. The crew subsequently turned the aircraft onto taxiway G3, which was closed. The aircraft was then stopped until cone markers and unserviceability lights, which marked taxiway G3, had been removed.

The taxiway system in that area of the airport had been undergoing significant changes. A Notice to Airmen (NOTAM) had been issued advising that taxiway G3 was only available during daylight hours. The end of daylight had occurred 29 minutes before the incident.

Safety Action

Jeppesen were advised of the ambiguity displayed on the chart and have since re-issued the chart to more accurately reflect the current amendments to the taxiway system in that part of the airport.

General details
Date: 17 January 1999   Investigation status: Completed  
Time: 2103 hours ESuT    
Location   (show map): Sydney, Aero.    
State: New South Wales   Occurrence type: Navigation - Other  
Release date: 09 August 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 VH-OJE  
Serial number 24482  
Type of operation Air Transport High Capacity  
Damage to aircraft Nil  
Departure point Bangkok, Thailand  
Destination Sydney, NSW  
Last update 13 May 2014