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Last updated: 28 November 2020
Status:Schlussbericht
Datum:Sonntag 18 März 1979
Zeit:02:22
Flugzeugtyp:Silhouette image of generic B742 model; specific model in this crash may look slightly different
Boeing 747-246F (SCD)
Fluggesellschaft:Japan Air Lines - JAL
Kennzeichen: JA8123
Werknummer: 21034/243
Baujahr: 1974-08-02 (4 years 8 months)
Triebwerk: 4 Pratt & Whitney JT9D-7R4G2
Besatzung:Todesopfer: 0 / Insassen: 3
Fluggäste:Todesopfer: 0 / Insassen: 0
Gesamt:Todesopfer: 0 / Insassen: 3
Sachschaden: leicht beschädigt
Konsequenzen: Repaired
Unfallort:København-Kastrup Airport (CPH) (   Dänemark)
Flugphase: Taxi (TXI)
Betriebsart:Frachtflug
Flug von:Anchorage International Airport, AK (ANC/PANC), USA
Flug nach:København-Kastrup Airport (CPH/EKCH), Dänemark
Flugnummer:JL625
Unfallbericht:
JAL flight 625 was a scheduled international cargo flight from Anchorage, Alaska, USA to Frankfurt, Germany with a stop in Copenhagen, Denmark for refueling and crew change. The aircraft landed on runway 04L at 02:15 hours.
The taxiways and aprons at Copenhagen were covered with approximately 1-2 inches of loose snow with reported braking action poor. When the captain entered the apron area there was no guide line visible and taxispeed was reduced to 10 kts. Part of the apron along finger C had been cleaned for loose snow and a snow bank more or less parallel to finger C and 12-14 inches high appeared when JL625 approached the apron. The captain decided to keep the right wing gear tracking on the left side of the snow bank due to a parked DC-10 at gate 32 at the finger on his right side. Taxiing on the apron he noticed three lightmasts and judged the clearance for the left wingtip to be sufficient. He continued straight ahead close to the snowbank and when approaching gate 30 a right turn was initiated for docking. A small jolt which was thought to be the right gear boogie having encountered the snowbank was felt in the aircraft and it stopped.
According to the captain's statement he was then marshalled to continue the right turn towards the gate. But it was not possible to continue even when adding power. He then observed that the left wing had contacted and turned over a lightmast. That mast was a No. 4 in the row of previous mentioned masts noticed by the captain. It was not aligned with no. 2 and 3 mast but closer to finger C. The captain was not aware of this no. 4 mast.

Probable Cause:

Cause of the Accident: "The cause of the accident was that JA 8123 was directed to and the PIC accepted to taxi on an apron with a snowbank and without a visible guideline."

Informationsquelle:
» Aircraft Accident Report AIG/04/79


Sicherheitsempfehlungen

DAI issued 1 Safety Recommendation

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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 Anchorage International Airport, AK to København-Kastrup Airport as the crow flies is 6887 km (4304 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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