Incident Overview
Date: Tuesday 11 July 1967
Aircraft Type: Grumman G-159 Gulfstream I
Owner/operator: Honeywell Inc.
Registration Number: N861H
Location: 8 km SE of Le Center, MN –
ÿ United States of America
Phase of Flight: Take off
Status: Destroyed, written off
Casualties: Fatalities: 2 / Occupants: 2
Component Affected: Propeller automatic cruise pitch retraction systemPropeller automatic cruise pitch retraction system
Investigating Agency: NTSBNTSB
Category: Accident

A Gulfstream aircraft, departing Minneapolis at 10:34 CDT for company pilot training, experienced a catastrophic engine fire resulting in a crash into a bean field. The fire triggered an explosion, leading to loss of control and a ground crash.A Gulfstream aircraft, departing Minneapolis at 10:34 CDT for company pilot training, experienced a catastrophic engine fire resulting in a crash into a bean field. The fire triggered an explosion, leading to loss of control and a ground crash.
Description
The Gulfstream departed Minneapolis at 10:34 CDT for a company pilot training flight in clear weather. An engine fire forced the crew to request emergency radar vectors for Le Center. The no. 2 engine was seen emitting smoke and flames, followed by an explosion in the engine. The aircraft lost control and crashed in flames into a bean field, striking the ground right wing down and disintegrating along a northwest ground path, 1,220 feet long and 264 feet wide. PROBABLE CAUSE: “Overtemperaturing of both engines, in-flight fire and explosion caused by the ‘Z’ relay in the propeller automatic cruise pitch retraction system.”
Primary Cause
Overtemperaturing of both engines, in-flight fire and explosion caused by the ‘Z’ relay in the propeller automatic cruise pitch retraction system.Overtemperaturing of both engines, in-flight fire and explosion caused by the ‘Z’ relay in the propeller automatic cruise pitch retraction system.Share on: