No fatalities

Private Pilot Makes Emergency Landing After Engine RPM Loss (N4167Z)

Naknek, AK, US

On May 19, 2006, a Piper PA-18 (registration N4167Z) operated by Charles L. Summerville Iii was involved in an aviation accident near Naknek, AK. No fatalities were reported. Investigators recorded the probable cause as: A loss of engine power during cruise flight for an undetermined reason, which resulted in a forced landing and subsequent collision with high vegetation and the ground. 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

During cruise flight at 1,000 ft, a private pilot experienced a loss of engine rpm. Despite normal gauges and emergency procedures, the airplane collided with alders and came to rest at a remote airstrip, sustaining structural damage.

Incident Details

A private certificated pilot was conducting cruise flight approximately 1,000 feet above ground level when the engine began to lose revolutions per minute (rpm). The pilot stated that the engine gauges appeared normal, yet the rpm continued to decrease. The pilot performed all emergency procedures, including application of carburetor heat, but the airplane could not maintain level flight.

Unable to sustain altitude, the pilot turned toward a remote airstrip and prepared for an emergency landing. During the landing approach, the airplane collided with alders, then bounced off the ground before coming to rest near the end of runway 13 at the airstrip. The airplane ended up facing the opposite direction of its original flight path.

Aircraft Damage

The airplane sustained structural damage to the fuselage, empennage, and wings as a result of the collision with trees and terrain.

Investigation

The pilot was unable to determine what precipitated the loss of engine power. The engine was not examined by NTSB or FAA personnel, leaving the cause of the power loss undetermined.

Frequently asked questions

What happened in the 19 May 2006 Piper PA-18 accident near Naknek, AK?

During cruise flight at 1,000 ft, a private pilot experienced a loss of engine rpm. Despite normal gauges and emergency procedures, the airplane collided with alders and came to rest at a remote airstrip, sustaining structural damage.

Were there any fatalities in the 19 May 2006 Piper PA-18 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 19 May 2006 involved a Piper PA-18, registration N4167Z, operated by Charles L. Summerville Iii, at Naknek, AK.

What was the probable cause of the accident?

A loss of engine power during cruise flight for an undetermined reason, which resulted in a forced landing and subsequent collision with high vegetation and the ground.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20060523X00607. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.