Crease Beam

879 failure reports named the crease beam in the last ten years, 3,582 since 1995, most often on the Boeing 737; the condition most often found was "corroded". 29 FAA approvals let 2 companies make a replacement crease beam, Magee Plastics Company holding the most (27).

Reports by year

Reports by year, as a table

	reports
1995	3
1996	10
1997	26
1998	16
1999	9
2000	30
2001	76
2002	122
2003	60
2004	135
2005	113
2006	124
2007	136
2008	210
2009	187
2010	202
2011	271
2012	251
2013	275
2014	196
2015	251
2016	242
2017	150
2018	120
2019	119
2020	56
2021	31
2022	30
2023	25
2024	37
2025	40
2026	29

Which system the reports file it under last ten years

Airframe structure878Cabin, seats and restraints1

Reports by system, as a table

	reports
Airframe structure	878
Cabin, seats and restraints	1

Models most often reporting it last ten years

Boeing 737672Boeing 757162Aerospatiale ATR 7217Boeing 74710Aerospatiale/Aeritalia ATR 426Airbus A3003Boeing 7672Embraer EMB-145 ERJ 1452Embraer ERJ 170 E170 and E1752Boeing-Vertol 1071

Models most reported, as a table

	reports
Boeing 737	672
Boeing 757	162
Aerospatiale ATR 72	17
Boeing 747	10
Aerospatiale/Aeritalia ATR 42	6
Airbus A300	3
Boeing 767	2
Embraer EMB-145 ERJ 145	2
Embraer ERJ 170 E170 and E175	2
Boeing-Vertol 107	1

How it failed the condition found, last ten years

corroded783cracked72damaged16elongated4gouged3out of tolerance1

Conditions found, as a table

	reports
corroded	783
cracked	72
damaged	16
elongated	4
gouged	3
out of tolerance	1

Approved replacement parts 29 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a crease beam and sell it as an approved part for the models named. These are the companies holding such approvals for a crease beam:

Magee Plastics Company 27 Precision Conversions LLC 2

For these models most: Boeing 757 (29), Boeing 737 (27).

Maker	Part	Replaces	Fits	Granted	Status
Magee Plastics Company	Crease Beam Clamp Pad 123-11546-1	411N1527-1	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clamp 123-11565-2( )	411N1521-1 411N1521-7	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clip 123-11369-1	411N1407-3	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clamp Plug 123-11553-2( )	411N1521-4	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clamp Plug 123-11553-1( )	411N1521-3	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Shaft 123-11580-1	411N1522-5	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clamp 123-11566-1( )	Modification Part	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clip 123-11380-1	411N1407-4	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clamp 123-11565-1( )	411N1521-2 411N1521-8	Boeing 737-300 Series, 737-400 Series,...	2015-11-23	current
Magee Plastics Company	Crease Beam Clip 123-11380-1	411N1407-4	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Clamp 123-11565-1( )	411N1521-2	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Clamp 123-11566-1( )	Modification Part	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Clip 123-11369-1	411N1407-3	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Shaft 123-11580-1	411N1522-5	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Clamp Plug 123-11553-1( )	411N1521-3	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Clamp Assembly 123-11571-1( )	Modification Part	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Clamp 123-11565-2( )	411N1521-1	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Clamp Pad 123-11546-1	411N1527-1	Boeing 737-600 Series, 737-700 Series,...	2014-05-27	current
Magee Plastics Company	Crease Beam Shaft 123-11580-1	411N1522-5	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clamp 123-11566-1( )	Modification Part	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clamp Assembly 123-11571-1( )	Modification Part	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clamp Pad 123-11546-1	411N1527-1	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clip 123-11369-1	411N1407-3	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clamp 123-11565-2( )	411N1521-1	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clamp Plug 123-11553-1( )	411N1521-3	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clip 123-11380-1	411N1407-4	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Magee Plastics Company	Crease Beam Clamp 123-11565-1( )	411N1521-2	Boeing 737-600 Series, 737-700 Series,...	2013-12-04	current
Precision Conversions LLC	Crease Beam - Modification 007F9421	Modification Parts	Boeing 757-200 Series	2006-01-16	current
Precision Conversions LLC	Crease Beam - Modification 007F9421	Modification Parts	Boeing 757-200 Series	2005-07-27	current

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.