Pilot Debrief

SIAI-MARCHETTI S.205/22R near Farmingdale, NY — 2010-10-17

Final reportERA11FA021
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Date
2010-10-17
Location
Farmingdale, NY, USA
Airport
FRG
Aircraft
SIAI-MARCHETTI S.205/22R
Registration
N934W
Category
Airplane
Highest injury
Fatal
Fatalities
1
Phase of flight
Initial climb

Probable cause

A loss of engine power during a low approach for undetermined reasons.

NTSB narrative

The pilot was conducting a low approach about 300 to 400 feet above the runway when the airplane experienced a total loss of engine power. The pilot initiated a forced landing to a road about 0.25 mile east-northeast of the departure runway. One of the passengers reported that the engine was "missing and surging" prior to the loss of engine power. A witness at the airport noted that the engine noise was smooth and steady as the airplane climbed to an altitude of about 500 to 600 feet above the ground before it suddenly sputtered and went quiet. The pilot reported that, earlier, he had aborted a takeoff due to a low cylinder temperature indication. He said that he believed that the engine may have had a fouled spark plug, which he believed had been corrected during a subsequent engine run-up. One of the passengers reported that the engine had run rough during the aborted takeoff. The airplane was maintained by the pilot and had been operated for about 17 hours since its most recent annual inspection, which was performed about 6 weeks prior to the accident. Postaccident examination of the airframe and engine, which included a carburetor flow check and examination of all spark plugs, revealed no mechanical malfunctions or failures that would have precluded normal operation.

Analysis

Primary failure mode
Engine power loss
First missed decision gate
Pilot could have aborted the flight after initial takeoff due to engine roughness.

NTSB coding

Evidence available

  • FDR / data
  • ADS-B / radar
  • Photos
  • 28 docket documents
View NTSB final reportView NTSB docket

Docket documents28

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