Incident Overview

Date: Sunday 19 July 1970
Aircraft Type: Boeing 737-222
Owner/operator: United Airlines
Registration Number: N9005U
Location: Philadelphia International Airport, PA (PHL) – ÿ United States of America
Phase of Flight: Initial climb
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 61
Component Affected: Aircraft engine (specifically the No.1 engine).Aircraft engine (specifically the No.1 engine).
Investigating Agency: NTSBNTSB
Category: Accident
A Boeing 737 taxiing to runway 09 experienced a sudden and significant adverse event during takeoff. A loud bang followed by a rightward veering occurred, leading to the aircraft touching down short of the runway. The captain initiated a return to the runway, resulting in a landing short of the end. The aircraft subsequently crossed a field, entered a chain link fence, and collided with vegetation.A Boeing 737 taxiing to runway 09 experienced a sudden and significant adverse event during takeoff. A loud bang followed by a rightward veering occurred, leading to the aircraft touching down short of the runway. The captain initiated a return to the runway, resulting in a landing short of the end. The aircraft subsequently crossed a field, entered a chain link fence, and collided with vegetation.

Description

At 18:50 Boeing 737 “City of Bristol” taxied to runway 09 for departure. At 19:05 the first officer, who was pilot flying, initiated the takeoff roll. Shortly after rotation, at a speed above V2, a loud bang was heard and the aircraft veered to the right. The captain moved both throttles forward but there seemed to be no response. The captain then made the instantaneous decision to set the aircraft back on the runway. The aircraft touched down 1075 feet short of the runway end. The 737 continued of the end of the runway and across the blast pad. It crossed a field, passed through a 6-foot high aluminum chain link fence into an area covered with high grass, weeds and brush. The aircraft came to rest 1634 feet past the end of the runway. PROBABLE CAUSE: “The termination of the take-off, after the No.1 engine failed, at a speed above V2 at a height of approximately 50 feet, with insufficient runway remaining to effect a safe landing. The captain’s decision and his action to terminate the take-off were based on the erroneous judgment that both engines had failed.”

Primary Cause

Termination of takeoff due to engine failure at a high speed, insufficient runway remaining.Termination of takeoff due to engine failure at a high speed, insufficient runway remaining.

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