Incident Overview

Date: Tuesday 28 September 2021
Aircraft Type: IAI 1124A Westwind II
Owner/operator: Brasil Vida T xi A‚reo
Registration Number: PR-BVB
Location: Goiƒnia-Santa Genoveva Airport, GO (GYN) – ÿ Brazil
Phase of Flight: Take off
Status: Substantial, written off
Casualties: Fatalities: 0 / Occupants: 5
Component Affected: Aircraft Control System (Specifically, the attitude control system)Aircraft Control System (Specifically, the attitude control system)
Investigating Agency: CENIPACENIPA
Category: Accident
On August 11, 2023, an IAI 1124A Westwind II aircraft experienced a runway excursion following an aborted takeoff from Runway 14 at Goiƒnia-Santa Genoveva Airport, Brazil. The flight was en route to Miami with an intermediate stop in Port of Spain, Trinidad & Tobago. Weather conditions were fine with a wind of 090§ at 4 kt, visibility exceeding 10 km, clear skies, and a temperature of 32øC. The runway 14 was the active landing and takeoff area. The aircraft, operating before the PR-BVB, reported a tailwind of 8-10 kt at takeoff, exceeding the aircraft’s MTOW of 21,750 lbs. Despite this, the aircraft took off 776 lbs (352 kg) above the correct weight, leading to a maximum takeoff weight (MTOW) of 21,750 lbs. The crew, aware of the discrepancy, proceeded with their departure. After rotation, the aircraft exhibited a ‘falling’ trajectory, impacting the right-hand side of the fuselage. The aircraft landed successfully, and the PIC decided to discontinue the takeoff. The aircraft’s center of gravity (CG) was positioned behind the trim selected for takeoff, indicating a potential instability. Contributing factors included a complacent attitude in relation to the manufacturer’s limits, leading to a risk of the aircraft exceeding its MTOW. Piloting judgment also contributed, with the crew failing to adequately assess the situation and reject the takeoff despite the increased weight. Finally, inadequate flight planning and a failure in the decision-making process, including a lack of risk mitigation, played a role in the incident.On August 11, 2023, an IAI 1124A Westwind II aircraft experienced a runway excursion following an aborted takeoff from Runway 14 at Goiƒnia-Santa Genoveva Airport, Brazil. The flight was en route to Miami with an intermediate stop in Port of Spain, Trinidad & Tobago. Weather conditions were fine with a wind of 090§ at 4 kt, visibility exceeding 10 km, clear skies, and a temperature of 32øC. The runway 14 was the active landing and takeoff area. The aircraft, operating before the PR-BVB, reported a tailwind of 8-10 kt at takeoff, exceeding the aircraft’s MTOW of 21,750 lbs. Despite this, the aircraft took off 776 lbs (352 kg) above the correct weight, leading to a maximum takeoff weight (MTOW) of 21,750 lbs. The crew, aware of the discrepancy, proceeded with their departure. After rotation, the aircraft exhibited a ‘falling’ trajectory, impacting the right-hand side of the fuselage. The aircraft landed successfully, and the PIC decided to discontinue the takeoff. The aircraft’s center of gravity (CG) was positioned behind the trim selected for takeoff, indicating a potential instability. Contributing factors included a complacent attitude in relation to the manufacturer’s limits, leading to a risk of the aircraft exceeding its MTOW. Piloting judgment also contributed, with the crew failing to adequately assess the situation and reject the takeoff despite the increased weight. Finally, inadequate flight planning and a failure in the decision-making process, including a lack of risk mitigation, played a role in the incident.

Description

The IAI 1124A Westwind II, operating on an ambulance flight, suffered a runway excursion after an aborted takeoff from runway 14 at Goiƒnia-Santa Genoveva Airport, Brazil. The destination of the flight was Miami, with an en route stop at Port of Spain, Trinidad & Tobago. At the time of the accident, the weather was fine with a wind of 090§ at 4 kt, visibility more than 10 km, sky clear, and a temperature of 32øC. The runway 14 was the active runway for landing and takeoff operations. An aircraft that had taken off before the PR-BVB reported a tailwind of 8-10 kt at takeoff. This information was relayed to the crew of PR-BVB before it took off. In these circumstances, the maximum takeoff weight (MTOW) for the flight was 21,750 lbs. However, the aircraft took off 776 lbs (352 kg) above the correct weight for the existing conditions. The flight crew was aware of this, but decided to proceed with their departure. The crew reported that, after the rotation, the aircraft “fell” with its wing to the right-hand side. The aircraft touched down again and the PIC decided to discontinue the takeoff. It was also determined that the centre of gravity (CG) was behind the CG of the trim selected for takeoff. Contributing factors. – Attitude ? a contributor. Taking off outside the prescribed parameters indicated a complacent attitude in relation to the limits established by the manufacturer and, therefore, contributed to the condition of risk that resulted in the occurrence in question. – Piloting judgment ? a contributor. Although being qualified for the operation, the crew did not assess the situation in an accurate manner when they decided to proceed with the flight with the aircraft above the maximum takeoff weight. – Flight planning ? a contributor. The attempt to take off with the aircraft above the maximum takeoff weight characterized inadequacy of the preparation work done by the crew. – Decision-making process ? a contributor. The decision to attempt takeoff with the aircraft above the maximum takeoff weight revealed difficulties in perceiving the risks involved in that condition, which resulted in takeoff rejection after V1 and overrunning of the longitudinal limits of the runway. – Managerial oversight ? a contributor. There was a failure on the part of the administration related to the supervision of the planning and execution of the activities at a technical and operational level with regard to the mission being carried out on the occasion of this accident

Source of Information

https://g1.globo.com/go/goias/noticia/2021/09/28/aviao-que-saiu-da-pista-do-aeroporto-de-goiania-levava-paciente-para-os-estados-unidos-diz-empresa.ghtml, https://noticias.r7.com/brasilia/jato-de-empresa-de-saude-sofre-acidente-no-aeroporto-de-goiania-28092021, https://www.metropoles.com/brasil/video-jatinho-sai-da-pista-apos-decolar-no-aeroporto-de-goianiahttps://g1.globo.com/go/goias/noticia/2021/09/28/aviao-que-saiu-da-pista-do-aeroporto-de-goiania-levava-paciente-para-os-estados-unidos-diz-empresa.ghtml, https://noticias.r7.com/brasilia/jato-de-empresa-de-saude-sofre-acidente-no-aeroporto-de-goiania-28092021, https://www.metropoles.com/brasil/video-jatinho-sai-da-pista-apos-decolar-no-aeroporto-de-goiania

Primary Cause

Complacency in attitude regarding the limits established by the manufacturer, leading to an increased takeoff weight exceeding the aircraft’s MTOW.Complacency in attitude regarding the limits established by the manufacturer, leading to an increased takeoff weight exceeding the aircraft’s MTOW.

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