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Last updated: 21 September 2018
Datum:zondag 18 november 1979
Type:Silhouette image of generic L188 model; specific model in this crash may look slightly different
Lockheed L-188CF Electra
Luchtvaartmaatschappij:Transamerica Airlines
Registratie: N859U
Constructienummer: 2016
Bouwjaar: 1960
Aantal vlieguren:41764
Motoren: 4 Allison 501-D13
Bemanning:slachtoffers: 3 / inzittenden: 3
Passagiers:slachtoffers: 0 / inzittenden: 0
Totaal:slachtoffers: 3 / inzittenden: 3
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:Salt Lake City, UT (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Vracht
Vliegveld van vertrek:Ogden-Hill AFB, UT (HIF/KHIF), Verenigde Staten
Vliegveld van aankomst:Las Vegas-Nellis AFB, NV (LSV/KLSV), Verenigde Staten
Vluchtnummer: 18
Flight 3N18 departed Hill AFB for an IFR cargo flight to Nellis AFB. While climbing from FL120 to FL130 the crew reported loss of electrical power and requested no-gyro vectors to visual flight conditions and immediate descent clearance. During the descent the aircraft attained a high airspeed and high rate of descent and disintegrated in flight.

Probable Cause:

PROBABLE CAUSE: "A progressive failure in the aircraft's electrical system leading to the disabling or erratic performance of some critical flight instruments and flight instrument lighting while the flight was operating in night instrument meteorological condition. As a result of these conditions, the flight crew could not resolve the instrumentation anomalies to determine proper aircraft attitude reference, and became disoriented and lost control of the aircraft. The crew's efforts to regain control of the aircraft imposed aerodynamic loads which exceeded design limits of the aircraft and caused it to break up in flight."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Accident number: NTSB/AAR-80-11
Download report: Final report

» NTSB-AAR-80-11


NTSB issued 1 Safety Recommendation

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photo of Lockheed L-188CF Electra N859U
photo of Lockheed L-188CF Electra N859U
Saturn Airways merged into Trans International Airlines; the airline was renamed Transamerica October 1, 1979
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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 Ogden-Hill AFB, UT en Las Vegas-Nellis AFB, NV bedraagt 601 km (375 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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