ASN Aircraft accident Gulfstream G-IV N478GS Bucharest Baneasa Aurel Vlaicu International Airport (BBU)
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Status:Accident investigation report completed and information captured
Date:Monday 6 December 2004
Time:13:29 UTC
Type:Silhouette image of generic GLF4 model; specific model in this crash may look slightly different
Gulfstream G-IV
Operator:Centurion Aviation Services
Registration: N478GS
MSN: 1478
First flight: 2002
Total airframe hrs:2004
Engines: 2 Rolls-Royce Tay 611-8
Crew:Fatalities: 0 / Occupants:
Passengers:Fatalities: 0 / Occupants:
Total:Fatalities: 0 / Occupants:
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:Bucharest Baneasa Aurel Vlaicu International Airport (BBU) (   Romania)
Phase: Landing (LDG)
Nature:Int'l Non Scheduled Passenger
Departure airport:Bagram Air Base (OAI/OAIX), Afghanistan
Destination airport:Bucharest Baneasa Aurel Vlaicu International Airport (BBU/LRBS), Romania
The Gulfstream G-IV suffered a runway excursion after landing on runway 07 at Bucharest Baneasa Airport.
On the day of the accident maintenance works were being carried out on runway 07 with the partial removal and replacement of concrete. The threshold was displaced, causing landing distance available to become 2360 m.
The G-IV landed long and fast and could not be stopped on the runway. It overshot the runway threshold and taxied with the left main leg on an unpaved section with a depth of approx. 15-20 cm, and came to rest on the edge of the runway. The crew reported massive fuel leakage from the left wing.
As a result, the aircraft sustained damage to the left main landing gear strut and the fuel tank in the left wing.

Probable Cause:

Causes of the accident
Contributory factors :
- Performing the approach procedure at high approach speed since entering TMA Bucuresti; ,
- Unstabilized approach at high speed on the ILS slope;
- Continuation of ILS approach under conditions of not properly intercepting the slope;
- Failure to initiate the missed procedure when EGPWS signals appeared (during the instrument landing at 100 ft, it is assumed that the aircraft was on the landing slope, with the checklist completed) ;
- "Long" landing of the aircraft (about 1000 M from the threshold of runway 07) and at high speed - indicated in the plot (195 Kts at 0.5 NM from threshold and 179 Kts at touchdown);
- delay of brake actuation as well as delay of thrust reverser operation after actuation.
Contributing :
- Long landing with overshoot of available landing area.

Accident investigation:
Investigating agency: CIAS Romania
Status: Investigation completed
Duration: 2 years and 2 months
Accident number: Nr.31
Download report: Final report

Landing after unstabilized approach
Late landing
Runway excursion


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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 Bagram Air Base to Bucharest Baneasa Aurel Vlaicu International Airport as the crow flies is 3768 km (2355 miles).

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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