ASN Aircraft accident Convair CV-240-53 N344MM San Juan-Luis Munoz Marin International Airport (SJU)
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Status:Accident investigation report completed and information captured
Date:Monday 30 June 1997
Time:07:45 EDT
Type:Silhouette image of generic CVLP model; specific model in this crash may look slightly different
Convair CV-240-53
Operator:Silver Express
Registration: N344MM
MSN: 53-26
First flight: 1954
Engines: 2 Pratt & Whitney R-2800
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 1
Total:Fatalities: 0 / Occupants: 3
Aircraft damage: Damaged beyond repair
Location:San Juan-Luis Munoz Marin International Airport (SJU) (   Puerto Rico)
Phase: Initial climb (ICL)
Departure airport:San Juan-Luis Muñoz Marín International Airport (SJU/TJSJ), Puerto Rico
Destination airport:Santo Domingo-Las Américas International Airport (SDQ/MDSD), Dominican Republic
After departing from runway 08, the CV-240 climbed to 400 feet agl where the left engine lost power. After confirming a loss of power,
the pilot feathered the left propeller, and called for maximum "dry" thrust on the right engine. Wet power was available which would have provided 450 additional horsepower, however, the pilot elected not to use it. The airplane was unable to maintain altitude, collided with a palm tree, and came to rest on the beach in the surf line. The reason for the left engine malfunction was not determined due to salt water damage. The airplane was 600 pounds over maximum weight.

Probable Cause:

PROBABLE CAUSE: "A loss of engine power for undetermined reasons, the pilot's improper emergency procedure after the power loss, and the overloading of the airplane, resulting in an inability to maintain altitude and terrain clearance."

Accident investigation:

Investigating agency: NTSB
Status: Investigation completed
Duration: 67 days (2 months)
Accident number: ATL97LA093
Download report: Summary report

» NTSB Identification: ATL97LA093


photo of Convair-CV-240-53-N344MM
accident date: 30-06-1997
type: Convair CV-240-53
registration: N344MM

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 San Juan-Luis Muñoz Marín International Airport to Santo Domingo-Las Américas International Airport as the crow flies is 385 km (240 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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