Statistical Analysis of Aircraft–Bird Strikes Resulting in Engine Failure

Avrenli, Kivanc A; Dempsey, B J

doi:10.3141/2449-02

Cited by 16 publications

(7 citation statements)

References 17 publications

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“…A wildlife strike, even from a single small bird could result in some engine damage. According to Avrenli and Dempsey (2014), due to the higher rotation of the engine(s) in specific phases of flight (e.g., takeoff roll), bird ingestions to the engine could lead to complete engine failure and destruction. This is one of the reasons for the extremely high costs associated with wildlife strikes.…”

Section: Discussionmentioning

confidence: 99%

An analysis of wildlife strikes to aircraft in Brazil: 2011-2018

Mendonca

Keller

Huang

2020

J. airl. airpt. manag.

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Purpose: Aircraft accidents due to wildlife hazards have become a growing safety and economic problem to the Brazilian and international aviation industries. These safety occurrences have resulted in significant direct and indirect economic losses as well injuries and fatalities worldwide. The purpose of this study was to develop empirical information obtained from the analysis of wildlife strike and aircraft operations data in Brazil that could be used for accident prevention efforts.Design/methodology: The research team collected and analyzed aircraft operations as well as wildlife strike data from the 32 busiest commercial airports in Brazil, from 2011 through 2018. Researchers obtained the number of aircraft operations at each of those 32 Brazilian airports from the Brazilian air traffic operations annual reports published by the Air Traffic Control Department. Wildlife strike data from the studied airports were obtained from the Brazilian national wildlife strike database. Descriptive data analysis was adopted to provide an intuitive and overall trend of wildlife strikes at and the 32 busiest commercial airports in Brazil.Findings: Results indicate that the number of wildlife strikes at and around the investigated airports increased 70% even though the number of aircraft operations at these airports declined by 12% during the period studied. Birds were involved in 88% of the reported events. Most reported strikes (59%) and damaging strikes (39%) occurred during the arrival phases-of-flight. Most (33%) strikes were reported by airport personnel. A finding of concern was that the majority of wildlife strikes (97%) and damaging wildlife strikes (96%) occurred within the airport environment.Originality/value: The current project contributes to the safety management of wildlife hazards in Brazil by conducting a comprehensive analysis of wildlife strike and aircraft operations data (2011-2018) in the 32 busiest Brazilian commercial airports.

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Section: Discussionmentioning

confidence: 99%

An analysis of wildlife strikes to aircraft in Brazil: 2011-2018

Mendonca

Keller

Huang

2020

J. airl. airpt. manag.

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“…The risk that a bird strike results in damage is highest for aircraft taking off [15,16]. Pilots can contribute to limit the likelihood of strikes during this flight phase.…”

Section: Bird Strike Risk Algorithmmentioning

confidence: 99%

Analysis of Risk-Based Operational Bird Strike Prevention

et al. 2021

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Bird strike prevention in civil aviation has traditionally focused on the airport perimeter. Since the risk of especially damaging bird strikes outside the airport boundaries is rising, this paper investigates the safety potential of operational bird strike prevention involving pilots and controllers. In such a concept, controllers would be equipped with a bird strike advisory system, allowing them to delay departures which are most vulnerable to the consequences of bird strikes in case of high bird strike risk. An initial study has shown the strong potential of the concept to prevent bird strikes in case of perfect bird movement prediction. This paper takes the research to the next level by taking into account the limited predictability of bird tracks. As such, the collision avoidance algorithm is extended to a bird strike risk algorithm. The risk of bird strikes is calculated for birds expected to cross the extended runway center line and to cause aircraft damage upon impact. By specifically targeting these birds and excluding birds lingering on the runway which are taken care of by the local wildlife control, capacity reductions should be limited, and the implementation remain feasible. The extrapolation of bird tracks is performed by simple linear regression based on the bird positions known at the intended take-off times. To calculate the probability of collision, uncertainties resulting from variability in bird velocity and track are included. The study demonstrates the necessity to limit alerts to potentially damaging strikes with birds crossing the extended runway center line to keep the imposed delays tolerable for airports operating at their capacity limits. It is shown that predicting bird movements based on simple linear regression without considering individual bird behavior is insufficient to achieve a safety-effect. Hence, in-depth studies of multi-year bird data to develop bird behavior models and reliable predictions are recommended for future research. This is expected to facilitate the implementation of a bird strike advisory system satisfying both safety and capacity aspects.

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“…An assessment of bird strikes reported to the FAA with civil aviation below approximately 152 m (500 ft) revealed that collisions with waterfowl and turkey vultures (Cathartes aura) were a higher risk for aviation than other species (DeVault et al 2011). Collisions with flocks of birds can also have a high negative impact on aviation, especially with the ingestion of several birds in a single engine or birds striking multiple engines (Avrenli and Dempsey 2014). Thus, larger birds and flocking species usually cause more severe bird strikes than other species.…”

Section: Problems For Aviationmentioning

confidence: 99%

Sharing the Aerosphere: Conflicts and Potential Solutions

2017

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As our use of the aerosphere is increasing, so too are the conflicts that arise between our activities and those of aerial wildlife. As a result, numerous stakeholders are interested in monitoring, modelling and forecasting the aerial movements of animals in the context of anthropogenic impacts. Birds can pose a serious threat to aviation, resulting in delays, damage to aircraft, lost flight hours and even the loss of lives. Military and civil aviation use a range of measures to monitor the movements of birds and to try and reduce the risk of wildlife strikes. Increasingly, Unmanned Aerial Vehicles are sharing an already crowded airspace, although just how problematic this may become remains to be seen. The wind energy industry, another important stakeholder, may pose serious threats for aerial wildlife, due to collisions with turbines, or the extra energetic costs and risks entailed with avoiding wind farms. Similarly, other tall structures pose a threat for aerial wildlife. In this chapter, we describe the nature of these different conflicts and provide an overview of the factors that influence the risk associated with aerial movement. We also describe how movement is being studied to provide essential information for these different stakeholders and discuss several

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Statistical Analysis of Aircraft–Bird Strikes Resulting in Engine Failure

Cited by 16 publications

References 17 publications

An analysis of wildlife strikes to aircraft in Brazil: 2011-2018

An analysis of wildlife strikes to aircraft in Brazil: 2011-2018

Analysis of Risk-Based Operational Bird Strike Prevention

Sharing the Aerosphere: Conflicts and Potential Solutions

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