Casualties unknown

Power Loss Forces Landing on Lake Winnipesaukee; Pilot Missing (N8473H)

Alton, NH, US

On November 16, 1990, a Piper PA-32-301R (registration N8473H) was involved in an aviation accident near Alton, NH. Investigators recorded the probable cause as: THE TOTAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. CONTRIBUTING TO THE SEVERITY OF THE ACCIDENT WAS THE UNSUITABLE TERRAIN IN WHICH THE FORCED LANDING WAS MADE. 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 2026-07-04Data APIEditorial standards

An airplane experienced total power loss during a cross-country flight and made a forced landing on Lake Winnipesaukee. The passenger swam ashore but the pilot was not found. Post-accident examination revealed no anomalies and the engine ran satisfactorily.

Incident Overview

On a cross-country flight from Manchester, New Hampshire, to Laconia, New Hampshire, the airplane experienced a total loss of engine power. According to the passenger, the engine failed immediately after the pilot disconnected the autopilot. The pilot and passenger made several unsuccessful attempts to restart the engine.

Forced Landing and Evacuation

The pilot executed a forced landing on Lake Winnipesaukee near Alton, New Hampshire. After the airplane came to rest on the water, both individuals climbed onto the wing. Moments later, they attempted to swim to shore. The passenger reached the shore but could not locate the pilot.

Recovery and Examination

The airplane was found and recovered one week later and transported to a hangar in Alton for examination. Post-accident inspection revealed that the fuel system contained adequate fuel and the fuel was uncontaminated. The engine was started and ran satisfactorily, with no anomalies noted in the engine or airframe.

Status of Pilot

As of the time of reporting, the pilot had not been found.

Frequently asked questions

What happened in the 16 Nov 1990 Piper PA-32-301R accident near Alton, NH?

An airplane experienced total power loss during a cross-country flight and made a forced landing on Lake Winnipesaukee. The passenger swam ashore but the pilot was not found. Post-accident examination revealed no anomalies and the engine ran satisfactorily.

What aircraft was involved and where did it happen?

The accident on 16 Nov 1990 involved a Piper PA-32-301R, registration N8473H, at Alton, NH.

What was the probable cause of the accident?

THE TOTAL LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. CONTRIBUTING TO THE SEVERITY OF THE ACCIDENT WAS THE UNSUITABLE TERRAIN IN WHICH THE FORCED LANDING WAS MADE.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X24682. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.