Incident Overview
Date: Wednesday 22 August 1962
Aircraft Type: Martin 4-0-4
Owner/operator: Piedmont Airlines
Registration Number: N40401
Location: Wilmington-New Hanover County Airport, NC (ILM) –
ÿ United States of America
Phase of Flight: Landing
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 3
Component Affected: Propeller low pitch stop lever assemblyPropeller low pitch stop lever assembly
Category: Accident
A Martin 4-0-4 aircraft, engaged in a local training flight, swerved off the runway during landing, resulting in significant damage. Investigation indicates a malfunction in the propeller low pitch stop lever assembly caused by foreign matter in the servo valve control, leading to an unwanted propeller reversal.A Martin 4-0-4 aircraft, engaged in a local training flight, swerved off the runway during landing, resulting in significant damage. Investigation indicates a malfunction in the propeller low pitch stop lever assembly caused by foreign matter in the servo valve control, leading to an unwanted propeller reversal.
Description
The Martin 4-0-4 was engaged in a local training flight out of Wilmington (ILM). Upon landing the airplane swerved off the runway, causing substantial damage. PROBABLE CAUSE: “Unwanted propeller reversal during a critical phase of landing caused by malfunction of the propeller low pitch stop lever assembly, resulting from foreign matter in the servo valve control.”
Primary Cause
Malfunction of the propeller low pitch stop lever assembly due to foreign matter in the servo valve control.Malfunction of the propeller low pitch stop lever assembly due to foreign matter in the servo valve control.Share on:
