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Last updated: 1 April 2020
Status:
Datum:Dienstag 5 April 1960
Zeit:14:39
Flugzeugtyp:Silhouette image of generic C46 model; specific model in this crash may look slightly different
Curtiss C-46A-40-CU Commando
Fluggesellschaft:Líneas Aéreas de Nicaragua - LANICA
Kennzeichen: AN-AIN
Werknummer: 26945
Baujahr: 1944
Betriebsstunden:5650
Triebwerk: 2 Pratt & Whitney R-2800-51
Besatzung:Todesopfer: 1 / Insassen: 4
Fluggäste:Todesopfer: 1 / Insassen: 14
Gesamt:Todesopfer: 2 / Insassen: 18
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:2,4 km (1.5 Meilen) von Siuna Airport (SIU) (   Nicaragua)
Flugphase: Während des Fluges (ENR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Siuna Airport (SIU/MNSI), Nicaragua
Flug nach:Bonanza-San Pedro Airport (BZA/MNBZ), Nicaragua
Unfallbericht:
The aircraft crashed on a hillside with a 10 degree upslope, 1,5 miles from the Siuna departure runway.

Probable Cause:

PROBABLE CAUSE: "During the investigation, when the port propeller was being dismantled it was discovered that the distributor valve was broken from the base of the junction with the engine crankshaft, the first threads having broken. The break appeared to be due to fatigue. From the evidence, the rupture of the distributor valve of the port propeller appears to have been the main cause of the accident, additional factors being unfavourable terrain, wind and altitude conditions."

Informationsquelle:
» Diário de Lisboa 6 April 1960, p7


Fotos

photo of Curtiss-C-46A-Commando-AN-AIN
accident date: 05-04-1960
type: Curtiss C-46A Commando
registration: AN-AIN
photo of Curtiss-C-46A-Commando-AN-AIN
accident date: 05-04-1960
type: Curtiss C-46A Commando
registration: AN-AIN
photo of Curtiss-C-46A-Commando-AN-AIN
accident date: 05-04-1960
type: Curtiss C-46A Commando
registration: AN-AIN
photo of Curtiss-C-46A-Commando-AN-AIN
accident date: 05-04-1960
type: Curtiss C-46A Commando
registration: AN-AIN
 

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 Siuna Airport to Bonanza-San Pedro Airport as the crow flies is 38 km (24 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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