Incident Overview
Date: Wednesday 25 February 1959
Aircraft Type: Boeing 707-121
Owner/operator: Pan American World Airways (Pan Am)
Registration Number: N709PA
Location: over Chartres –
ÿ France
Phase of Flight: En route
Status: Substantial, repaired
Casualties: Fatalities: 0 / Occupants: 5
Component Affected: No. 4 engine and strut assemblyNo. 4 engine and strut assembly
Category: Accident
During a training flight, an aircraft experienced an abrupt spin to the right due to a failure to maintain proper flying speed during a two-engine minimum control condition. Recovery was successful, resulting in the separation of the no. 4 engine and strut assembly from the right wing. The pilot failed to maintain flying speed during a two-engine control speed manoeuvre.During a training flight, an aircraft experienced an abrupt spin to the right due to a failure to maintain proper flying speed during a two-engine minimum control condition. Recovery was successful, resulting in the separation of the no. 4 engine and strut assembly from the right wing. The pilot failed to maintain flying speed during a two-engine control speed manoeuvre.
Description
While practicing a two-engine minimum control condition during training flight the aircraft went into an abrupt spin to the right. Recovery was accomplished; however, the no. 4 engine and strut assembly were separated from the right wing. A safe emergency landing was made at London, U.K. The pilot had failed to maintain flying speed during two engine control speed manoeuvre.
Source of Information
http://www.failure-interactions.com/b707-n709pa-25feb59.htmlhttp://www.failure-interactions.com/b707-n709pa-25feb59.htmlPrimary Cause
Failure to maintain flying speed during a two-engine control speed manoeuvre.Failure to maintain flying speed during a two-engine control speed manoeuvre.Share on:
