Casualties unknown

1996-11-14: Moody RV-6 (N12033) — Cottonwood, AZ

Cottonwood, AZ, US

On November 14, 1996, a Moody RV-6 (registration N12033) was involved in an aviation accident near Cottonwood, AZ. Investigators recorded the probable cause as: loss of engine power for undetermined reason(s). This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A pilot reported engine roughness and power loss while reducing power for landing after a local flight. The airplane collided with terrain short of the runway despite a mayday call and attempted landing on the opposite runway.

Accident Details

The pilot of the airplane stated that after returning from a local flight, he entered the airport traffic pattern for a landing on runway 32. According to the pilot, carburetor heat was pulled on and an initial power change was made from cruise power to 2,200 rpm. After reducing the power further to 1,800 rpm, the engine began to run rough. The pilot attempted to increase engine power; however, the engine continued to run rough until it finally stopped producing power altogether.

Emergency Response

While the engine problems were occurring, the pilot declared a mayday and attempted to land on runway 14, but he had insufficient altitude and the airplane collided with terrain about 200 yards short of the pavement.

Preflight and Postaccident Inspection

The pilot reported that both fuel tanks had been topped off the day before the accident flight, and a preflight check showed no sign of moisture. Postaccident inspection of the engine by an airframe and powerplant mechanic revealed no discrepancy.

Weather and Icing Conditions

The temperature at the time of the accident was 59 degrees Fahrenheit, and the dew point was 34 degrees Fahrenheit. Reference to a carburetor icing probability chart for the temperature/dew point spread revealed that the points were in an area of the chart delineated 'moderate icing cruise power/serious icing glide power.'

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X07070. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.