Parts · Airframe structure

Gust Lock

275 failure reports named the gust lock in the last ten years, 363 since 1995, most often on the Boeing 737; the condition most often found was "lack of lube". 4 FAA approvals let 3 companies make a replacement gust lock, Safran Cabin INC. holding the most (2). The reports call it "gust lock", "gust lock collar", "gust lock mech".

Reports by year

Reports by year, as a table

	reports
1995	1
1996	5
1997	2
1998	1
1999	1
2001	1
2002	1
2003	3
2004	1
2006	1
2007	6
2008	3
2010	2
2011	11
2012	9
2013	15
2014	10
2015	15
2016	14
2017	10
2018	18
2019	16
2020	19
2021	26
2022	40
2023	29
2024	32
2025	46
2026	25

Which system the reports file it under last ten years

Airframe structure272Flight controls3

Reports by system, as a table

	reports
Airframe structure	272
Flight controls	3

Models most often reporting it last ten years

Boeing 73795Boeing 75784Airbus A32134Airbus A31913Embraer ERJ 170 E170 and E17512Airbus A3208Airbus A3308Mcdonnell Douglas Aircraft Co MD 837Airbus A3004Boeing 7473Boeing 7171Boeing 7671

Models most reported, as a table

	reports
Boeing 737	95
Boeing 757	84
Airbus A321	34
Airbus A319	13
Embraer ERJ 170 E170 and E175	12
Airbus A320	8
Airbus A330	8
Mcdonnell Douglas Aircraft Co MD 83	7
Airbus A300	4
Boeing 747	3
Boeing 717	1
Boeing 767	1

How it failed the condition found, last ten years

lack of lube54inoperative39broken36damaged20failed16dirty14out of adjust14cracked13stuck12sticking10

Conditions found, as a table

	reports
lack of lube	54
inoperative	39
broken	36
damaged	20
failed	16
dirty	14
out of adjust	14
cracked	13
stuck	12
sticking	10

Engines most often reporting it

CFM International LEAP-1A33 1

Approved replacement parts 4 parts manufacturer approvals

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

Safran Cabin INC. 2Worthington Aviation 1Jet Repair Center INC 1

For these models most: Israel Aircraft Industries 1124 (1).

Maker	Part	Replaces	Fits	Granted	Status
Safran Cabin INC.	GUST LOCK COVER 9505137-1AA	9505137-1AA	De Havilland... DHC-8-400	2025-08-22	current
Safran Cabin INC.	GUST LOCK COVER 9505120-7	9505120-7	De Havilland... DHC-8-400	2025-08-22	current
Jet Repair Center INC	GUST LOCK,COVER 128-520053-1JET	128-520053-1	Textron Aviation 400T	2020-12-17	current
Worthington Aviation	Gust Lock 553551	553551	Israel Aircraft Industries 1124/1124A	2011-01-13	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.