Accident
Last updated: 24 April 2014
Status:Definitief
Datum:dinsdag 18 oktober 1983
Tijd:21:07
Type:Silhouette image of generic B742 model; specific model in this crash may look slightly different
Boeing 747-230F
Luchtvaartmaatschappij:Lufthansa
Registratie: D-ABYU
Constructienummer: 22668/538
Bouwjaar: 1981-08-13 (2 years 2 months)
Aantal vlieguren:10223
Aantal vluchten:1659
Motoren: 4 General Electric CF6-50E2
Bemanning:slachtoffers: 0 / inzittenden: 3
Passagiers:slachtoffers: 0 / inzittenden: 0
Totaal:slachtoffers: 0 / inzittenden: 3
Schade: Groot
Gevolgen: Repaired
Plaats:Hong Kong-Kai Tak International Airport (HKG) (   Hong Kong) show on map
Fase: Start (TOF)
Soort vlucht:Vracht
Vliegveld van vertrek:Hong Kong-Kai Tak International Airport (HKG/VHHH), Hong Kong
Vliegveld van aankomst:Dubai Airport (DXB/OMDB), Verenigde Arabische Emiraten
Beschrijving:
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."

Bronnen:

Official accident investigation report
investigating agency: 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)

Veiligheidsmaatregelen

CAD Hong Kong issued 5 Safety Recommendations

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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Hong Kong-Kai Tak International Airport en Dubai Airport bedraagt 5911 km (3694 miles).

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