Accident
Last updated: 1 August 2014
Status:Schlussbericht
Datum:Sonntag 18 Dezember 1977
Zeit:01:38 MST
Flugzeugtyp:Douglas DC-8-54F
Fluggesellschaft:United Airlines
Kennzeichen: N8047U
Werknummer: 45880/275
Baujahr: 1966
Triebwerk: 4 Pratt & Whitney JT3D-
Besatzung:Todesopfer: 3 / Insassen: 3
Fluggäste:Todesopfer: 0 / Insassen: 0
Gesamt:Todesopfer: 3 / Insassen: 3
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:5 km (3.1 Meilen) E of Kaysville, UT (   USA) show on map
Flugphase: Annäherung (APR)
Betriebsart:Frachtflug
Flug von:San Francisco International Airport, CA (SFO/KSFO), USA
Flug nach:Salt Lake City International Airport, UT (SLC/KSLC), USA
Flugnummer:2860
Unfallbericht:
The aircraft was flying a holding pattern near Salt Lake City because of problems with the electrical system. The flight crew contacted the company maintenance and were absent from the approach control frequency for about 7,5 minutes. During this time the aircraft had entered an area near hazardous terrain. When the crew returned to the approach control frequency, they were told to initiate a left turn were instructed to climb immediately to 8000 feet. The aircraft eventually struck a 7665 feet high mountain at 7200 feet.

PROBABLE CAUSE: "The approach controller's issuance and the flight crew's acceptance of an incomplete and ambiguous holding clearance in combination with the flight crew's failure to adhere to prescribed impairment-of-communications procedures and prescribed holding procedures. The controller's and flight crew's actions are attributed to probable habits of imprecise communication and of imprecise adherence to procedures developed through years of exposure to operations in a radar environment. Contributing to the accident was the failure of the aircraft's No.1 electrical system for unknown reasons."

Informationsquelle:
» NTSB-AAR-78-8

Official accident investigation report
investigating agency: National Transport Safety Bureau (NTSB) - USA
report status: Final
report number: NTSB/AAR-78-08
report released:27-JUL-1978
duration of investigation:221 days (7.4 months)
download report: United Airlines, Inc., Douglas DC-8-54, N8047U, near Kaysville, Utah, December 18, 1977. (NTSB/AAR-78-08)

Sicherheitsempfehlungen

NTSB issued 2 Safety Recommendations

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Fotos

photo of McDonnell Douglas DC-8-54F N8047U
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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 San Francisco International Airport, CA to Salt Lake City International Airport, UT as the crow flies is 955 km (597 miles).

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