Share:


Analysis of wing separation and mid-air breakup in light training aircraft

Abstract

Despite increasing discussions concerning the recently published wing spar airworthiness directive (AD) that affects many training aircraft and several current ADs for wing struts, there remains limited objective literature on incidents of wing separation or mid-air breakup. This paper attempts to report and analyse instances of wing separation and mid-air breakup of light training aircraft. A careful review of the United States National Transportation Safety Board (NTSB) aircraft accident database revealed that wing separations were more likely occur as mid-air breakup in PA28s than 172s/182s (OR: 3.06, 95 % CI: 1.3682 to 6.8536, p = .008). Additionally, wing separations were less likely to occur as mid-air breakups in the strutted 172s/182s than 177s/210s that don’t have a wing strut (OR: 0.11, 95 % CI: 0.04 to 0.29, p = <.001). This implies that non-strutted wing designs may be more susceptability to mid-air breakup than the strutted design of similar aircraft.

Keyword : general aviation, safety, mid-air breakup, wing separation, wing spar, training aircraft

How to Cite
Hirabayashi, M. (2021). Analysis of wing separation and mid-air breakup in light training aircraft. Aviation, 25(4), 278-282. https://doi.org/10.3846/aviation.2021.15953
Published in Issue
Dec 17, 2021
Abstract Views
273
PDF Downloads
267
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

References

Alaziz, M., Stolfi, A., & Olson, D. M. (2017). Cirrus airframe parachute system and odds of a fatal accident in Cirrus aircraft crashes. Aerospace Medicine and Human Performance, 88(6), 556–564. https://doi.org/10.3357/AMHP.4679.2017

Aviation Database. (2001). NTSB accident query. http://www.aviationdb.com/Aviation/AccidentQuery.shtm

Boyd, D. D. (2016). General aviation accidents related to exceedance of airplane weight/center of gravity limits. Accident Analysis & Prevention, 91, 19–23. https://doi.org/10.1016/j.aap.2016.02.019

Boyd, D. D. (2017). A review of General Aviation safety (1984–2017). Aerospace Medicine and Human Performance, 88(7), 657–664. https://doi.org/10.3357/AMHP.4862.2017

Dorr, L. (2018, July 30). Fact sheet – General aviation safety. Federal Aviation Administration (FAA), DOT. https://www.faa.gov/news/fact_sheets/news_story.cfm?newsId=21274

Gant, L. T. (2020a, August 24). Airworthiness Directives; Textron Aviation Inc. Airplanes (Docket No. FAA-2018-0049). Federal Aviation Administration (FAA), DOT. https://www.federalregister.gov/documents/2020/10/07/2020-22039/airworthiness-directives-textron-aviation-inc-airplanes

Gant, L. T. (2020b, February 13). Airworthiness Directives; Textron Aviation Inc. (Type Certificate Previously Held by Cessna Aircraft Company) (Docket No. FAA-2020-0156). Federal Aviation Administration (FAA), DOT. https://www.federalregister.gov/documents/2020/02/21/2020-03276/airworthiness-directives-textron-aviation-inc-type-certificate-previously-held-by-cessna-aircraft

Jaya, A., Tiong, U. H., Mohammed, R., Bil, C., & Clark, G. (2010). Corrosion treatments and the fatigue of aerospace structural joints. Procedia Engineering, 2(1), 1523–1529. https://doi.org/10.1016/j.proeng.2010.03.164

Li, G., & Baker, S. P. (2007). Crash risk in General Aviation. JAMA, 297(14), 1596–1598. https://doi.org/10.1001/jama.297.14.1596

National Transportation Safety Board. (2020). CAROL Query. NTSB. https://data.ntsb.gov/carol-main-public/keywordsearch

National Transportation Safety Board. (1987, March 30). National Transportation Safety Board Aviation Accident Final Report (Accident No: FTW87FA088). NTSB. https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20001213X30441&AKey=1&RType=HTML&IType=FA

National Transportation Safety Board. (1997, January 21). Aviation Accident Data Summary (Accident No: CHI97FA056). NTSB. https://app.ntsb.gov/pdfgenerator/ReportGenerator-File.ashx?EventID=20001208X07261&AKey=1&RType=Summary&IType=FA

National Transportation Safety Board. (2001). NTSB Aviation Accident Database & Synopses. NTSB. www.ntsb.gov/_layouts/ntsb.aviation/index.aspx

National Transportation Safety Board. (2002, November 29). Aviation Accident Final Report (Accident No: FTW03FA053). NTSB. https://app.ntsb.gov/pdfgenerator/ReportGenerator-File.ashx?EventID=20021230X05642&AKey=1&RType=HTML&IType=FA

National Transportation Safety Board. (2013, November 2). Aviation Accident Final Report (Accident No: CEN14LA036). NTSB. https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/88377/pdf

National Transportation Safety Board. (2018, April 4). In-flight Breakup of PIPER PA28R (Accident No: ERA18FA120). NTSB. https://www.ntsb.gov/investigations/Documents/ERA18FA120-Investigative-Update.pdf

Perry, C. L. (1989, May 22). Airworthiness Directive; Piper PA28 and PA32 series airplanes (Docket No. AD 87-08-08 R3). Federal Aviation Administration (FAA), DOT. https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf/0/3a805d11f753eba78625829700556b61/$FILE/87-08-08_Rescission.pdf

Sciortino, G. A. (2021, January 15). Airworthiness Directives; Piper Aircraft, Inc. Airplanes (Docket No. FAA-2018-1046). Federal Aviation Administration (FAA), DOT. https://www.federalregister.gov/documents/2021/01/15/2021-00044/airworthiness-directives-piper-aircraft-inc-airplanes