Accident Cessna 208 Caravan I N336DN, Tuesday 15 September 2009
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Date:Tuesday 15 September 2009
Type:Silhouette image of generic C208 model; specific model in this crash may look slightly different    
Cessna 208 Caravan I
Owner/operator:North American Flight Services
Registration: N336DN
MSN: 20800001
Year of manufacture:1985
Total airframe hrs:10182 hours
Engine model:Pratt & Whitney Canada PT6A-114A
Fatalities:Fatalities: 0 / Occupants: 6
Other fatalities:0
Aircraft damage: Destroyed, written off
Location:Sheffield, MA -   United States of America
Phase: En route
Nature:Passenger - Non-Scheduled/charter/Air Taxi
Departure airport:Farmingdale-Republic Field, NY (FRG/KFRG)
Destination airport:Saratoga Springs-Saratoga County Airport, NY
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
A Cessna 208, N336DN, operated by North American Flight Services Inc., experienced a loss of engine power while climbing and performed a forced landing in Sheffield, MA. The airplane was destroyed by a post crash fire and the commercial-rated pilot and 5 passengers were not injured. Visual meteorological conditions prevailed and an instrument flight rules flight plan was filed for the flight that departed Farmingdale-Republic Field, NY (FRG), destined for the Saratoga Springs-Saratoga County Airport, NY. The five passengers were employees of an industrial services company. The flight transported blasting caps and ammonium nitrate used for blasting operations, which were stored in a metal box inside the airplane.
The pilot reported that the airplane departed FRG at 1405, and he initiated a climb to 9,000 feet without any abnormalities. As the airplane was climbing, and at an altitude of about 8,500 feet, the pilot heard two "whooshing" sounds, about 5 seconds apart. The engine then began to experience torque fluctuations. Shortly thereafter, the engine torque dropped to idle, and the pilot heard a "loud bang" and felt a "burst vibration."
The pilot declared an emergency to air traffic control and was told that the closest airport was located about 10 miles north, in Great Barrington, Massachusetts. The pilot informed air traffic control that the airplane would not be able to reach Great Barrington, and he subsequently performed a forced landing to a field.
During the landing, the airplane's right wing struck a tree and separated. All occupants exited the airplane without injury; however, the airplane became fully engulfed in fire, which consumed the majority of the airplane.
This Cessna 208 was the first production Caravan.

PROBABLE CAUSE: "A total loss of engine power due to a failure of the 1st stage sun gear output splines for unknown reasons, which resulted in a power turbine overspeed condition, with subsequent blade distress/release."

Accident investigation:
Investigating agency: NTSB
Report number: ERA09LA523
Status: Investigation completed
Duration: 1 year and 3 months
Download report: Final report


Saratoga-bound plane crashed in Berkshires (15-9-2009, The Saratogian)
NTSB Identification: ERA09LA523



photo (c) NTSB; Sheffield, MA; September 2009; (publicdomain)

photo (c) NTSB; Sheffield, MA; September 2009; (publicdomain)

photo (c) NTSB; Sheffield, MA; September 2009; (publicdomain)

Revision history:


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