Narrative:
A Boeing 747-230F cargo jet sustained substantial damage in a runway excursion accident at Hong Kong-Kai Tak International Airport (HKG). None of the three crew members was injured.
The airplane operated flight LH683 from Hong Kong (HKG) to Frankfurt (FRA), Germany via Dubai (DXB). During the night takeoff from Hong Kong a malfunction of the No. 2 engine occurred, and the takeoff was subsequently rejected from a high speed. In the later stages of the deceleration the aircraft veered off the paved surface of the runway onto soft ground.
The calculated V1 for the takeoff was 157 knots, and VR 168 knots. The call to reject takeoff was made at a speed between 156 and 167 knots IAS.
CAUSE: "The accident was caused by the take-off being rejected at high speed, probably in excess of V1, at a point where the remaining runway length was insufficient to ensure a safe stop. A number of factors contributed to the aircraft having used more runway distance to reach the reject point than that scheduled in the Airplane Flight Manual, thus diminishing the available braking distance. An attempt to remedy the problem experienced with the Number 2 engine was responsible for the take off not being abandoned at an earlier stage. The reason for the aircraft leaving the runway paved surface has not been determined."
Runway excursion
accident date: 18-10-1983
type: Boeing 747-230F
registration: D-ABYU
| Status: | Accident investigation report completed and information captured |
| Date: | Tuesday 18 October 1983 |
| Time: | 21:07 |
| Type: |  Boeing 747-230F |
| Operator: | Lufthansa Cargo |
| Registration: | D-ABYU |
| MSN: | 22668/538 |
| First flight: | 1981-08-13 (2 years 2 months) |
| Total airframe hrs: | 10223 |
| Cycles: | 1659 |
| Engines: | 4 General Electric CF6-50E2 |
| Crew: | Fatalities: 0 / Occupants: 3 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Aircraft fate: | Repaired |
| Location: | Hong Kong-Kai Tak International Airport (HKG) ( Hong Kong)
|
| Phase: | Takeoff (TOF) |
| Nature: | Cargo |
| Departure airport: | Hong Kong-Kai Tak International Airport (HKG/VHHH), Hong Kong |
| Dubai Airport (DXB/OMDB), United Arab Emirates | |
| Flightnumber: | LH683 |
A Boeing 747-230F cargo jet sustained substantial damage in a runway excursion accident at Hong Kong-Kai Tak International Airport (HKG). None of the three crew members was injured.
The airplane operated flight LH683 from Hong Kong (HKG) to Frankfurt (FRA), Germany via Dubai (DXB). During the night takeoff from Hong Kong a malfunction of the No. 2 engine occurred, and the takeoff was subsequently rejected from a high speed. In the later stages of the deceleration the aircraft veered off the paved surface of the runway onto soft ground.
The calculated V1 for the takeoff was 157 knots, and VR 168 knots. The call to reject takeoff was made at a speed between 156 and 167 knots IAS.
Probable Cause:
CAUSE: "The accident was caused by the take-off being rejected at high speed, probably in excess of V1, at a point where the remaining runway length was insufficient to ensure a safe stop. A number of factors contributed to the aircraft having used more runway distance to reach the reject point than that scheduled in the Airplane Flight Manual, thus diminishing the available braking distance. An attempt to remedy the problem experienced with the Number 2 engine was responsible for the take off not being abandoned at an earlier stage. The reason for the aircraft leaving the runway paved surface has not been determined."
Accident investigation:
 |
|
Classification:
Rejected takeoffRunway excursion
Follow-up / safety actions
CAD Hong Kong issued 5 Safety Recommendations
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Photos
accident date: 18-10-1983
type: Boeing 747-230F
registration: D-ABYU
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Hong Kong-Kai Tak International Airport to Dubai Airport as the crow flies is 5911 km (3694 miles).
Accident location: Approximate; accuracy within a few kilometers.
Distance from Hong Kong-Kai Tak International Airport to Dubai Airport as the crow flies is 5911 km (3694 miles).
Accident location: Approximate; accuracy within a few kilometers.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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