Parts · Airframe structure

Box Beam

340 failure reports named the box beam in the last ten years, 377 since 1996, most often on the Airbus A319; the condition most often found was "cracked". The reports call it "box beam", "lower box beam".

Reports by year

Reports by year, as a table

	reports
1996	3
2007	3
2009	1
2010	2
2011	8
2012	1
2013	1
2015	18
2016	190
2017	44
2018	36
2019	18
2020	10
2021	7
2022	10
2023	1
2024	5
2025	10
2026	9

Which system the reports file it under last ten years

Airframe structure340

Reports by system, as a table

	reports
Airframe structure	340

Models most often reporting it last ten years

Airbus A319137Airbus A320119Airbus A32134Boeing 75731Boeing 7378Airbus A3003Bombardier CL-600 Challenger and CRJ2Messerschmitt-Bolkow-Blohm BK 1172Agusta Spa A1091Agusta Spa A1191Boeing 7671Mcdonnell Douglas MD-111

Models most reported, as a table

	reports
Airbus A319	137
Airbus A320	119
Airbus A321	34
Boeing 757	31
Boeing 737	8
Airbus A300	3
Bombardier CL-600 Challenger and CRJ	2
Messerschmitt-Bolkow-Blohm BK 117	2
Agusta Spa A109	1
Agusta Spa A119	1
Boeing 767	1
Mcdonnell Douglas MD-11	1

How it failed the condition found, last ten years

cracked287corroded36damaged9not reported4chafed1dented1distorted1out of tolerance1

Conditions found, as a table

	reports
cracked	287
corroded	36
damaged	9
not reported	4
chafed	1
dented	1
distorted	1
out of tolerance	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.