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Accident
Last updated: 15 December 2017
Status:Definitief
Datum:donderdag 23 mei 1974
Tijd:16:53
Type:Silhouette image of generic C130 model; specific model in this crash may look slightly different
Lockheed L-100-30 Hercules
Luchtvaartmaatschappij:Saturn Airways
Registratie: N14ST
Constructienummer: 4225
Bouwjaar: 1967
Aantal vlieguren:18837
Motoren: 4 Allison 501-D22A
Bemanning:slachtoffers: 3 / inzittenden: 3
Passagiers:slachtoffers: 1 / inzittenden: 1
Totaal:slachtoffers: 4 / inzittenden: 4
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:nabij Springfield, IL (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Vracht
Vliegveld van vertrek:Alameda NAS, CA (NGZ/KNGZ), Verenigde Staten
Vliegveld van aankomst:Indianapolis-Weir Cook Municipal Airport, IN (IND/KIND), Verenigde Staten
Vluchtnummer: 14
Beschrijving:
At 10:00 PDT Saturn Flight 14 departed the Alameda Naval Air-Station for a cargo flight to Wilmington, Delaware with an en route stop at Indianapolis The flight was uneventful before it reached Springfield, except for a deviation to avoid weather over Colorado. Shortly after a deviation to the right to avoid weather, the left wing separated from the aircraft at about outer wing station 162. The aircraft rolled and yawed violently, and shortly after the left wing failed , the right wing failed outboard of the no. 4 engine. The aircraft descended at a steep angle and crashed.

Probable Cause:

PROBABLE CAUSE: "The undiscovered, preexisting fatigue cracks, which reduced the strength of the left wing to the degree that it failed as a result of positive aerodynamic loads created by moderate turbulence."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 244 days (8 months)
Accident number: NTSB/AAR-75-05
Download report: Final report

Bronnen:
» NTSB-AAR-75-5


Veiligheidsmaatregelen
As a result of facts obtained by the Safety Board during its investigation of the crash of Flight 14, the FAA issued Airworthiness Directive 74-12-06. The directive required that all applicable aircraft be inspected. The inspection of all US registered L-382 aircraft revealed one aircraft with the lower forward spar cap cracked through the entire cross section at OWS 160. The flight hours on the aircraft were 16,000 +.

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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 Alameda NAS, CA en Indianapolis-Weir Cook Municipal Airport, IN bedraagt 3089 km (1931 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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