Casualties unknown

Engine Power Loss and Forced Landing Following Hydraulic Gear Issue (N3333P)

Ely, MN, US

On May 27, 1993, a Piper PA-23-160 (registration N3333P) operated by Crystal Shamrock, Inc. was involved in an aviation accident near Ely, MN. Investigators recorded the probable cause as: the pilot's decision to continue flight with a known deficiency in the airplane's hydraulic system. Factors associated with the accident are the loss of power in the left engine due to fuel contamination, and a leak in the hydraulic system. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

A pilot reported losing power in the left engine at 7,000 feet MSL. After feathering the propeller, the airplane continued to descend and made a forced landing into treetops. The pilot noted a recurring landing gear issue.

Accident Overview

The pilot of a twin-engine airplane reported that the left engine lost power while cruising at 7,000 feet MSL. After feathering the left propeller, the airplane continued to lose altitude. The pilot was unable to maintain altitude and subsequently performed a forced landing into treetops.

Landing Gear Issue

Throughout the flight, the pilot reported that the main landing gear kept sagging, requiring him to place the main gear selector in the up position every 3 to 5 minutes. The pilot stated that the gear problem was apparently caused by a slow leak in the hydraulic system and that the issue had been scheduled for repair.

Pilot's Assessment

In a written report to the NTSB, the pilot expressed that in retrospect, the seemingly minor gear problem may have been of critical significance in causing the accident. He noted that he might have been able to recognize the gear issue as a source of drag and avoid the crash landing.

Engine Examination

An examination of the left engine after the accident disclosed water and debris in the fuel system, as well as blackened spark plugs.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X12363. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.