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Accident
Last updated: 22 October 2017
Status:Schlussbericht
Datum:Sonntag 18 Dezember 1977
Zeit:01:38 MST
Flugzeugtyp:Silhouette image of generic DC85 model; specific model in this crash may look slightly different
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)
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:UA2860
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:

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."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 221 days (7 months)
Accident number: NTSB/AAR-78-08
Download report: Final report

Informationsquelle:
» NTSB-AAR-78-8


Sicherheitsempfehlungen

NTSB issued 2 Safety Recommendations

Show all AD's and Safety Recommendations

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).
Accident location: Exact; as reported in the official accident report.

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
  • 46th loss
  • 31st Fataler Unfall
  • 28th worst accident (Zu diesem Zeitpunkt)
  • 42nd worst accident (Momentan)
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