Summary
On 14 July 2007, a Boeing 737 NG, registered ZK-PBF, taxied at Sydney Airport on taxiway 'G' to runway 16R for a take-off to Christchurch, New Zealand. The aircraft entered the runway with left engine N1 at 28% RPM and right engine N1 at 20% RPM (idle).
The flight crew commenced the take-off by increasing both engines' thrust and the Take Off / Go Around (TO/GA) button was pressed with the left engine N1 at 41% RPM and the right engine N1 at 24% RPM. As both engines accelerated, asymmetric thrust reduced directional controllability of the aircraft, and it veered off the side of the runway before the crew could bring the aircraft to a halt on the crossing runway 07.
As a result of this occurrence, the aircraft operator has reviewed procedures for initial and recurrent training of flight crews.
Occurrence summary
| Investigation number | AO-2007-023 |
|---|---|
| Occurrence date | 14/07/2007 |
| Location | Sydney |
| State | New South Wales |
| Report release date | 18/02/2009 |
| Report status | Final |
| Investigation level | Systemic |
| Investigation type | Occurrence Investigation |
| Investigation status | Completed |
| Mode of transport | Aviation |
| Aviation occurrence category | Runway excursion |
| Occurrence class | Serious Incident |
| Highest injury level | None |
Aircraft details
| Manufacturer | The Boeing Company |
|---|---|
| Model | 737 |
| Registration | ZK-PBF |
| Serial number | 33799 |
| Sector | Jet |
| Operation type | Air Transport High Capacity |
| Departure point | Sydney, NSW |
| Destination | Christchurch, NZ |
| Damage | Minor |