# Accident 20090915049469A: Cessna 208, Sheffield, MA, September 15, 2009

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 15, 2009, 14:30 local time
- Place: Sheffield, MA
- Damage: Destroyed
- Phase of flight: Cruise/Level Flight
- Operating rules: Air taxi and commuter (Part 135)
- Operator: N0MA
- Location: 42.0970° N, 73.3565° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=42.0970&lon=-73.3565&mi=10
- Aircraft: N336DN, a cancelled registration (https://openairdocs.org/deregistered/N336DN-2017-04-18) (OpenAirDocs)
- Registry model: Cessna 208 (registry code 2073702, https://openairdocs.org/model/cessna-208) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada PT6A-114A (registry code 52257, https://openairdocs.org/engine/pratt-whitney-canada-pt6a-114a) (OpenAirDocs)
- Reported make and model: CESSNA 208
- Reported engine: PRATT & WHITNEY PT6A
- People aboard: 6
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 3,100 total, 30 in this make and model, 50 in the last 90 days
- NTSB investigation: [NTSB ERA09LA523](https://openairdocs.org/ntsb/ERA09LA523) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20090915049469A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

WHILE IN CRUISE AT 7000 FEET, 30 MINUTES INTO THE FLIGHT, ENROUTE FROM FARMINGDALE, NY (FRG) TO SARATOGA, NY (5B2), THE PILOT HEARD A "STRANGE NOISE" FROM THE ENGINE.  CARRIED ON BOARD THE AIRCRAFT WERE APROXIMATELY 124 HALF POUND STICKS OF AMONIA NITRATE, 112 BLASTING CAPS AND FIVE PASSENGERS.  THE PILOT STATED ALL ENGINE INDICATIONS WERE NORMAL EXCEPT FOR THE TORQUE GAUGE, WHICH SHOWED A DROP OF APROXIMATELY 300 POUNDS INDICATED.  THE TORQUE APPEARED TO BE COMING BACK AND THE "STRANGE NOISE" HAPPENED A SECOND TIME.  THE PIC DECLARED AN EMERGENCY WITH BOSTON CENTER.  SHORTLY AFTER THE SECOND OCCURENCE THE PILOT STATED THE ENGINE LOST POWER.  AN ENGINE RESTART WAS ATTEMPTED, BUT WAS UNSUCCESSFUL.  THE PROPELLER WAS FEATHERED.  THE PILOT STATED THAT HE WAS GOING TO TRY AND MAKE GREAT BARRINGTON AIRPORT, MA (GBR).  APROXIMATELY 5 MILES SOUTH OF GBR THE PIC REALIZED HE COULD NOT MAKE GBR AND SET UP AN APPROACH TO A SOY BEAN FIELD IN SHEFFIELD, MA.  SEVERAL WITNESSES ON THE GROUND STATED THEY OBSERVED FLAMES COMING FROM THE UNDERSIDE OF THE AIRCRAFT.  WHILE TURNING FOR THE APPROACH TO THE FIELD THE PASSENGERS SEATED ON THE RIGHT SIDE OF THE AIRCRAFT STATED THEY SAW FIRE.  THE AIRCRAFT LANDED IN THE FIELD.  LANDING AT THE SOUTH END OF THE FIELD THE AIRCRAFT STRUCK TREES AND A STONE WALL TEARING OFF THE RIGHT WING AND MAIN LANDING GEAR.  THE AIRCRAFT TURNED 90 DEGREES AND ENDED ON THE OTHER THE SIDE OF A DIRT ROAD FACING EAST.  MOST OF THE AIRCRAFT WAS CONSUMED BY A POST CRASH FIRE.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA09LA523](https://openairdocs.org/ntsb/ERA09LA523), Sep 15, 2009: Cessna 208 (N336DN), Sheffield, MA, destroyed. 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…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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