Parts · Airframe structure

Spar Web

101 failure reports named the spar web in the last ten years, 269 since 1995, most often on the Boeing 767; the condition most often found was "corroded". The reports call it "spar web", "rear spar web".

Reports by year

Reports by year, as a table

	reports
1995	31
1996	35
1997	42
1998	31
1999	23
2013	3
2014	2
2015	1
2016	3
2017	7
2018	7
2019	19
2020	5
2021	8
2022	12
2023	5
2024	5
2025	12
2026	18

Which system the reports file it under last ten years

Airframe structure101

Reports by system, as a table

	reports
Airframe structure	101

Models most often reporting it last ten years

Boeing 76729Boeing 73726Cessna 680 Citation Sovereign and Latitude12Boeing 74711Lockheed 3825Beechcraft 58 Baron3Mcdonnell Douglas MD-103Airbus A3002Boeing 7172Boeing 7572Airbus A3211Boeing 7271

Models most reported, as a table

	reports
Boeing 767	29
Boeing 737	26
Cessna 680 Citation Sovereign and Latitude	12
Boeing 747	11
Lockheed 382	5
Beechcraft 58 Baron	3
Mcdonnell Douglas MD-10	3
Airbus A300	2
Boeing 717	2
Boeing 757	2
Airbus A321	1
Boeing 727	1

How it failed the condition found, last ten years

corroded48cracked41damaged5none2chafed1elongated1gouged1not reported1torn1

Conditions found, as a table

	reports
corroded	48
cracked	41
damaged	5
none	2
chafed	1
elongated	1
gouged	1
not reported	1
torn	1

Engines most often reporting it

Continental IO-550-C 1Continental IO-550-G 1

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.