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Accident
Last updated: 19 August 2017
Status:Definitief
Datum:vrijdag 27 november 1970
Tijd:17:05
Type:Silhouette image of generic DC86 model; specific model in this crash may look slightly different
McDonnell Douglas DC-8-63CF
Luchtvaartmaatschappij:Capitol Airways
Registratie: N4909C
Constructienummer: 46060/472
Bouwjaar: 1969
Aantal vlieguren:4944
Motoren: 4 Pratt & Whitney JT3D-
Bemanning:slachtoffers: 1 / inzittenden: 10
Passagiers:slachtoffers: 46 / inzittenden: 219
Totaal:slachtoffers: 47 / inzittenden: 229
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:Anchorage International Airport, AK (ANC) (   Verenigde Staten)
Fase: Start (TOF)
Soort vlucht:Internationale charter
Vliegveld van vertrek:Anchorage International Airport, AK (ANC/PANC), Verenigde Staten
Vliegveld van aankomst:Tokyo-Yokota AFB (OKO/RJTY), Japan
Vluchtnummer: 3/26
Beschrijving:
The DC-8 operated on a flight for the Military Airlift Command (MAC) from Tacoma-McChord AFB to Cam Ranh Bay via Anchorage and Yokota.
The aircraft failed to become airborne while trying to takeoff from Anchorage runway 06R and overran. It struck a wooden barrier, an ILS structure, a 12-foot deep drainage ditch and caught fire.

Probable Cause:

PROBABLE CAUSE: "The failure of the aircraft to attain the necessary airspeed to effect lift-off during the attempted takeoff. The lack of acceleration, undetected by the crew until after the aircraft reached V1 speed, was the result of a high frictional drag which was caused by a failure of all main landing gear wheels to rotate. Although it was determined that a braking pressure sufficient to lock all of the wheels was imparted to the brake system, the source of this pressure could not be determined. Possible sources of the unwanted braking pressure were either a hydraulic/brake system malfunction or an inadvertently engaged parking brake."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 4 months
Accident number: NTSB/AAR-72-12
Download report: Final report


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NTSB issued 2 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 Anchorage International Airport, AK en Tokyo-Yokota AFB bedraagt 5528 km (3455 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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DC-8

  • 556 built
  • 28e ongeval
  • 20e dodelijk ongeval
  • 9e zwaarste ongeval (toen het plaatsvond)
  • 19e zwaarste ongeval (op dit moment)
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 Verenigde Staten
  • 35e zwaarste ongeval (toen het plaatsvond)
  • 64e zwaarste ongeval (op dit moment)
» safety profile