Accident
Last updated: 1 November 2014
Status:Schlussbericht
Datum:Dienstag 18 Oktober 1983
Zeit:21:07
Flugzeugtyp:Silhouette image of generic B742 model; specific model in this crash may look slightly different
Boeing 747-230F
Fluggesellschaft:Lufthansa
Kennzeichen: D-ABYU
Werknummer: 22668/538
Baujahr: 1981-08-13 (2 years 2 months)
Betriebsstunden:10223
Anzahl Zyklen der Zelle:1659
Triebwerk: 4 General Electric CF6-50E2
Besatzung:Todesopfer: 0 / Insassen: 3
Fluggäste:Todesopfer: 0 / Insassen: 0
Gesamt:Todesopfer: 0 / Insassen: 3
Sachschaden: schwer beschädigt
Konsequenzen: Repaired
Unfallort:Hong Kong-Kai Tak International Airport (HKG) (   Hong Kong) show on map
Flugphase: Start (TOF)
Betriebsart:Frachtflug
Flug von:Hong Kong-Kai Tak International Airport (HKG/VHHH),
Flug nach:Dubai Airport (DXB/OMDB), Vereinigte Arabische Emirate
Unfallbericht:
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 take-off from Hong Kong a malfunction of the No. 2 engine occurred, and the take-off 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 take-off 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."

Informationsquelle:

Official accident investigation report
investigating agency: Civil Aviation Department (CAD) - Hong Kong
report status: Final
report number: AAR 1-87
report released:01-MAR-1987
duration of investigation:1230 days (3 years 4.5 months)
download report: Report on the accident to Boeing 747F D-ABYU at Hong Kong International Airport on 18 October 1983 (CAD Hong Kong AAR 1-87)

Sicherheitsempfehlungen

CAD Hong Kong issued 5 Safety Recommendations

Show all AD's and Safety Recommendations

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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).

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