Incident Overview
Date: Friday 16 April 1965
Aircraft Type: Fairchild F-27F
Owner/operator: Bonanza Air Lines
Registration Number: N757L
Location: Las Vegas-McCarran International Airport, NV (LAS) –
ÿ United States of America
Phase of Flight: Take off
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 2
Component Affected: Rotary flap actuator assemblyRotary flap actuator assembly
Investigating Agency: NTSBNTSB
Category: Accident
A Fairchild aircraft experienced a near-miss landing following a full flap landing, followed by flap-retraction during a no-flap takeoff. The aircraft veered left upon rotation and subsequently came to rest 557 feet left of the runway and 6000 feet from the takeoff end. The right inboard and outboard flaps were fully extended, with the left inboard flap extended 17 degrees and the left outboard flap fully retracted. The incident was likely caused by an asymmetrical flap condition during takeoff, resulting from foreign object jamming of the flap gear box and malfunction of the rotary flap actuator assembly.A Fairchild aircraft experienced a near-miss landing following a full flap landing, followed by flap-retraction during a no-flap takeoff. The aircraft veered left upon rotation and subsequently came to rest 557 feet left of the runway and 6000 feet from the takeoff end. The right inboard and outboard flaps were fully extended, with the left inboard flap extended 17 degrees and the left outboard flap fully retracted. The incident was likely caused by an asymmetrical flap condition during takeoff, resulting from foreign object jamming of the flap gear box and malfunction of the rotary flap actuator assembly.
Description
A full flap landing was carried out, followed by flap-retraction to practice a no-flap takeoff. The Fairchild veered left upon rotation and cartwheeled off the runway, coming to rest 557 feet left of the runway and 6000 feet from the takeoff end. It appeared that the right inboard and outboard flaps were fully extended; the left inboard flap was extended 17 degrees and the left outboard flap was fully retracted. PROBABLE CAUSE: “An asymmetrical flap condition during takeoff caused by foreign object jamming of the flap gear box and malfunction of the rotary flap actuator assembly. Inadequate maintenance and inspection. Inadequate function of the asymmetrical flap warning indicator.”
Primary Cause
Asymmetrical flap condition during takeoff, resulting from foreign object jamming of the flap gear box and malfunction of the rotary flap actuator assembly.Asymmetrical flap condition during takeoff, resulting from foreign object jamming of the flap gear box and malfunction of the rotary flap actuator assembly.Share on:
