Vliegtuigongeval op 27 NOV 1970 met McDonnell Douglas DC-8-63CF N4909C - Anchorage International Airport, AK (ANC)

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Accident

Last updated: 25 May 2013

Status:	Definitief
Datum:	27 NOV 1970
Tijd:	17:05 AST
Type:	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 take-off 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: "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."

Bronnen:

Official accident investigation report

investigating agency:	National Transport Safety Bureau (NTSB) - USA
report status:	Final
report number:	NTSB/AAR-72-12
report released:	29-MAR-1972
duration of investigation:	488 days (1 year 4.1 months)
download report:	Capitol International Airways, DC-8-63F, N4909C, Anchorage, Alaska, November 27, 1970. (NTSB/AAR-72-12)

Sample newspaper article from Newspaperarchive.com

Veiligheidsmaatregelen

NTSB issued 2 Safety Recommendations

Show all AD's and Safety Recommendations

Foto's

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).

languages:

DC-8

28^e ongeval
556 built
9^e zwaarste ongeval (toen het plaatsvond)
19^e zwaarste ongeval (op dit moment)

safety profile

Verenigde Staten

35^e zwaarste ongeval (toen het plaatsvond)
64^e zwaarste ongeval (op dit moment)

»safety profile

Issued: 24-DEC-1970	To: FAA	A-71-003
THE FAA DETERMINE AND IMPLEMENT TAKEOFF PROCEDURES THAT WILL PROVIDE APPROPRIATE JUDGMENT WITH REGARD TO THE AIRPLANE\'S RATE TO THE V1 SPEED, PARTICULARLY FOR CRITICAL LENGTH RUNWAYS, AND FOR RUNWAY SURFACE CONDITIONS THAT MAY IMPEDE ACCELERATION. NOTE: A SIMILAR RECOMMENDATION WAS FORWARDED TO THE FAA ON 10/3/63. (Closed - Unacceptable Action)
Issued: 09-MAR-1972	To: FAA	A-72-060
In cooperation with the aircraft manufacturers and the National Aeronautics and Space Administration, utilize the results of already extensive research and accident investigation data to develop and implement major improvements in the design of transport aircraft interiors. Of particular concern are improvements in the crashworthiness of galley equipment, stewardess seats and restraining devices, and the flammability cabin interior materials. (Superseded by A-83-78) (Closed - Superseded)