Incident Overview
Date: Thursday 23 August 2001
Aircraft Type: Boeing 747-368
Owner/operator: Saudi Arabian Airlines
Registration Number: HZ-AIO
Location: Kuala Lumpur International Airport (KUL) –
ÿ Malaysia
Phase of Flight: Taxi
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 6
Component Affected: Aux hydraulic pump switchesAux hydraulic pump switches
Category: Other

A Boeing 747 aircraft rolled into a drainage ditch and subsequently toppled forward, resulting in severe damage to the nose section. The aircraft was taxied to the departure gate to accommodate 319 passengers for Jeddah, Saudi Arabia. Ground engineering was operating the no. 2 and 3 engines during the taxi procedure, and the aircraft experienced a loss of steering and braking effectiveness, leading to its entry into the ditch. The aux hydraulic pump switches were in the off position.A Boeing 747 aircraft rolled into a drainage ditch and subsequently toppled forward, resulting in severe damage to the nose section. The aircraft was taxied to the departure gate to accommodate 319 passengers for Jeddah, Saudi Arabia. Ground engineering was operating the no. 2 and 3 engines during the taxi procedure, and the aircraft experienced a loss of steering and braking effectiveness, leading to its entry into the ditch. The aux hydraulic pump switches were in the off position.
Description
The Boeing 747 rolled into a drainage ditch and toppled forward causing the severe damage to the nose section. The aircraft was taxied to the departure gate to board 319 passengers for Jeddah, Saudi Arabia. Reportedly, the aircraft was being taxied by a ground engineer on the no. 2 and 3 engines. When trying to make a turn brakes and steering had no effect and the aircraft continued into the ditch. It is said that the aux hydraulic pumps switches were in the off position.
Primary Cause
Loss of steering and braking control due to faulty hydraulic pump switches.Loss of steering and braking control due to faulty hydraulic pump switches.Share on: