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Last updated: 23 September 2021
Datum:donderdag 9 december 1948
Type:Silhouette image of generic CVLP model; specific model in this crash may look slightly different
Convair CV-240-2
Luchtvaartmaatschappij:Pan American World Airways (Pan Am)
Registratie: NC90665
Constructienummer: 65
Aantal vlieguren:392
Motoren: 2 Pratt & Whitney R-2800-CA18
Bemanning:slachtoffers: 0 / inzittenden: 4
Passagiers:slachtoffers: 0 / inzittenden:
Totaal:slachtoffers: 0 / inzittenden:
Schade: Groot
Gevolgen: Repaired
Plaats:Havana-Rancho Boyeros Airport (HAV) (   Cuba)
Fase: Start (TOF)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Havana-Rancho Boyeros Airport (HAV/MUHA), Cuba
Vliegveld van aankomst:Miami International Airport, FL (MIA/KMIA), Verenigde Staten
Pan American Airways Flight 428 taxied to Havana's runway 05 with instructions to hold at the intersection while another aircraft was landing. On arrival at the intersection the engines were run up and the pre-flight check accomplished. At this time when operating the right engine on the right magneto there was fluctuation of 30 BMEP (Brake Mean Effective Pressure), and the engine backfired several times. The engine was operated at 30 inches of manifold pressure until the cylinder head temperature increased from 130 to 200 degrees Centigrade. At this temperature the magnetos were tested again and the engines were operating within normal limits. When cleared for takeoff, the first officer started the takeoff run. At an air speed of approximately 95 knots, back pressure was applied to the controls to take off. The captain, sensing an unusual vibration at this time, took over control, closed the throttles and applied the brakes. The aircraft had progressed down the runway about 2,600 feet when the brakes were applied. The left outboard and the right inboard tires blew out within a short distance. As the speed of the aircraft was still fairly high, the captain used the emergency air brakes. However, the aircraft rolled off the end of the paved runway, continued 300 feet to the boundary of the airport where it struck a ditch and skidded to a stop 315 feet beyond the airport boundary.

Probable Cause:

PROBABLE CAUSE: "The Board determines that the probable cause of this accident was inability to stop the aircraft under marginal conditions of stopping distance because of inadequate braking effectiveness."

» CAB File No. 1-0120


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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 Havana-Rancho Boyeros Airport en Miami International Airport, FL bedraagt 376 km (235 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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