Casualties unknown

2004-07-07: Piper PA-12 (N2489M) — Jaffrey, NH

Jaffrey, NH, US

On July 7, 2004, a Piper PA-12 (registration N2489M) was involved in an aviation accident near Jaffrey, NH. Investigators recorded the probable cause as: The loss of engine power for undetermined reasons. 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

During initial climb, the airplane failed to gain altitude and rpm dropped. The pilot attempted to return but descended into trees. Engine examination revealed no abnormalities; temperature/dewpoint conditions indicated serious carburetor icing risk at glide power.

Incident Overview

A pilot experienced a loss of engine performance shortly after takeoff, prompting an attempted return to the runway that ended with the airplane descending into trees. According to the investigation, the airplane had arrived at the airport approximately 20 minutes before the accident.

Flight Events

During the initial climb, the pilot observed that the airplane was not climbing as expected and the rpm gauge needle was dropping. Realizing there was no suitable area ahead to land, the pilot elected to turn back to the runway. However, during the turn, the airplane descended into trees.

Post-Accident Examination

An examination of the engine and fuel system did not reveal any abnormalities. Weather conditions recorded at the airport around the time of the accident included a temperature of 80°F and a dew point of 52°F. A review of an FAA carburetor icing probability chart placed the reported temperature and dew point in the "serious at glide power" area of the chart.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20040714X00971. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.