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Date:Monday 24 August 1970
Type:Silhouette image of generic L188 model; specific model in this crash may look slightly different
Lockheed L-188CF Electra
Operator:Universal Airlines
Registration: N855U
MSN: 2012
First flight: 1959-12-04 (10 years 9 months)
Crew:Fatalities: 0 / Occupants: 3
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 0 / Occupants: 3
Aircraft damage: Damaged beyond repair
Location:Ogden-Hill AFB, UT (HIF) (   United States of America)
Phase: Takeoff (TOF)
Departure airport:Ogden-Hill AFB, UT (HIF/KHIF), United States of America
Destination airport:Grand Forks Airport, ND (GFK/KGFK), United States of America
The Electra operated on flight Logair 9524 from Ogden-Hill AFB, UT (HIF) to Grand Forks Airport, ND (GFK) via Mountain Home AFB, ID (MUO), Spokane-Fairchild AFB, WA (SKA), Great Falls AFB, MT (GFA) and Minot AFB, ND (MIB).
The aircraft took off from runway 32. Shortly after gear-retraction, the nose pitched 15 degrees down and the aircraft crashed onto the runway, 8200 feet from the threshold. After sliding 2600 feet the cargo plane turned 90 degrees and came to a stop. Contrary to company regulations the crew used just one instead of three hydraulic pumps for takeoff. Because the pumps supply pressure to the flight control booster system, the crew were not able to control pitch.

Probable Cause:

pilot in command - inadequate preflight preparation and/or planning
pilot in command - failed to follow approved procedures,directives,etc.
personnel - flight engineer: inadequate preflight
miscellaneous acts,conditions - action,lack of
miscellaneous acts,conditions - pressure too low
systems - hydraulic system: hydraulic pumps
systems - flight control systems: flight control boost systems, hydraulic



photo of Lockheed-L-188CF-Electra-N855U
accident date: 24-08-1970
type: Lockheed L-188CF Electra
registration: N855U
photo of Lockheed-L-188CF-Electra-PH-LLE
accident date: 24-08-1970
type: Lockheed L-188CF Electra
registration: PH-LLE

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 Ogden-Hill AFB, UT to Grand Forks Airport, ND as the crow flies is 1384 km (865 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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