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Datum:zaterdag 25 april 2009
Type:Silhouette image of generic P2 model; specific model in this crash may look slightly different
Lockheed SP-2H Neptune
Luchtvaartmaatschappij:Neptune Aviation Services
Registratie: N442NA
Constructienummer: 726-7286
Bemanning:slachtoffers: 2 / inzittenden: 2
Passagiers:slachtoffers: 1 / inzittenden: 1
Totaal:slachtoffers: 3 / inzittenden: 3
Schade: Groot
Gevolgen: Written off (damaged beyond repair)
Plaats:2,7 km (1.7 mijl) N of Stockton, UT (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Ferry
Vliegveld van vertrek:Missoula Airport, MT (MSO/KMSO), Verenigde Staten
Vliegveld van aankomst:Alamogordo Municipal Airport, NM (ALM/KALM), Verenigde Staten
A Lockheed P2V-7 Neptune, N442NA, impacted the terrain about one and one-half mile north of Stockton, Utah. The two airline transport pilots and their passenger were killed in the accident, and the airplane was substantially damaged by the impact sequence. The airplane was owned and operated by Neptune Aviation Services, and dispatched as the result of the issuance of a Resource Order (Aircraft) issued by the National Interagency Coordination Center (NICC). The repositioning flight, which departed Missoula, Montana, about two hours prior to the accident, was en route to Alamogordo, New Mexico. At the time of the accident, the airplane was flying in an area of low ceilings and restricted visibility. No flight plan had been filed with the Federal Aviation Administration, but a company flight plan was on file with NICC.

Probable Cause:

Probable Cause: "The flight crew's failure to maintain terrain clearance during low altitude flight in low ceiling and visibility conditions. Contributing to the accident was the flight crew's failure to adequately monitor their location with respect to the rising terrain environment ahead, and, their lack of crew resource management communication as a crew."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 2 months
Accident number: WPR09GA216
Download report: Summary report
Language: English



photo of Lockheed-SP-2H-Neptune-N442NA
accident date: 25-04-2009
type: Lockheed SP-2H Neptune
registration: N442NA
photo of Lockheed-SP-2H-Neptune-N442NA
accident date: 25-04-2009
type: Lockheed SP-2H Neptune
registration: N442NA

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 Missoula Airport, MT en Alamogordo Municipal Airport, NM bedraagt 1697 km (1060 miles).
Accident location: Approximate; accuracy within a few kilometers.

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.
languages: languages


Lockheed P-2

  • 1036 built
  • 153e ongeval
  • 89e dodelijk ongeval
  • 68e zwaarste ongeval
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