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Last updated: 2 December 2021
Status:
Datum:woensdag 6 november 1957
Tijd:11:35
Type:Silhouette image of generic C46 model; specific model in this crash may look slightly different
Curtiss C-46A-50-CU Commando
Luchtvaartmaatschappij:Aerovias Sud Americana
Registratie: N10425
Constructienummer: 30525
Bouwjaar: 1944
Motoren: 2 Pratt & Whitney R-2800-51
Bemanning:slachtoffers: 0 / inzittenden: 2
Passagiers:slachtoffers: 0 / inzittenden: 0
Totaal:slachtoffers: 0 / inzittenden: 2
Slachtoffers op de grond:slachtoffers: 2
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:Guatemala City (   Guatemala)
Fase: Onbekend (UNK)
Soort vlucht:Vracht
Vliegveld van vertrek:Guatemala City-La Aurora Airport (GUA/MGGT), Guatemala
Vliegveld van aankomst:Belize City Municipal Airport (TZA), Belize
Beschrijving:
Curtiss N10425 took off from Guatemala City runway 01 at 11:18. Takeoff was uneventful and the aircraft climbed on a 5deg heading at 120 knots airspeed. At 11:25, while climbing through about 3000 feet agl (8000 feet asl) the no. 1 engine oil temperature reached 102deg C and the oil pressure dropped to 50 lb with the no. 1 engine backfiring a little later. Engine power was reduced to 1800rpm and power set to 30inches manifold pressure. The co-pilot requested a landing clearance for Guatemala City runway 19. Several minutes later the engine quit, forcing the crew to feather the prop. METO power and even takeoff power on the remaining engine couldn't prevent the aircraft from losing altitude. Descending through 1000 feet it became impossible to reach the airport; the crew prepared for a forced landing. At 200 feet altitude power on the no. 2 engine was reduced, but children were playing in the area made it impossible to land immediately. The flaps were extended and the crew decided to attempt a landing on a highway to avoid some houses. When the plane approached people were seen running toward the highway, so a landing between the highway and the houses was attempted. The aircraft struck power lines and trees and crashed into a residence, killing two people on the ground and injuring 3.
It appeared that the no. 1 engine had probably failed due to a fatigue failure of the engine's crankshaft.
PROBABLE CAUSE: "Inability of the aircraft to maintain single engine flight for reasons undetermined after failure of the other engine."

Bronnen:
» ICAO Accident Digest No.9, Circular 56-AN/51 (219-223)


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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 Guatemala City-La Aurora Airport en Belize City Municipal Airport bedraagt 408 km (255 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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