Parts · Flight controls

Control System

29 failure reports named the control system in the last ten years, 223 since 1995, most often on the Boeing 737; the condition most often found was "faulted". 4 FAA approvals let 3 companies make a replacement control system, Alexandria Aircraft LLC holding the most (2).

Reports by year

Reports by year, as a table

	reports
1995	3
1996	2
1997	3
2004	25
2005	91
2006	12
2007	10
2008	5
2009	6
2010	7
2011	7
2012	8
2013	4
2014	5
2015	6
2016	3
2017	1
2018	2
2019	5
2020	1
2021	3
2022	1
2023	4
2024	6
2025	1
2026	2

Which system the reports file it under last ten years

Flight controls15Engine7Heating, ice protection and utility systems6Landing gear1

Reports by system, as a table

	reports
Flight controls	15
Engine	7
Heating, ice protection and utility systems	6
Landing gear	1

Models most often reporting it last ten years

Boeing 7375Airbus A3203Boeing 7673Bombardier CL-600 Challenger and CRJ3Airbus A3302Boeing 7172Boeing 7572Embraer EMB-145 ERJ 1452Embraer ERJ 170 E170 and E1752Cessna 680 Citation Sovereign and Latitude1Cessna 750 Citation X1Dassault FALCON 20001

Models most reported, as a table

	reports
Boeing 737	5
Airbus A320	3
Boeing 767	3
Bombardier CL-600 Challenger and CRJ	3
Airbus A330	2
Boeing 717	2
Boeing 757	2
Embraer EMB-145 ERJ 145	2
Embraer ERJ 170 E170 and E175	2
Cessna 680 Citation Sovereign and Latitude	1
Cessna 750 Citation X	1
Dassault FALCON 2000	1

How it failed the condition found, last ten years

faulted7malfunctioned6failed3inoperative3out of adjust3binding1corroded1defective1faulty1lack of lube1

Conditions found, as a table

	reports
faulted	7
malfunctioned	6
failed	3
inoperative	3
out of adjust	3
binding	1
corroded	1
defective	1
faulty	1
lack of lube	1

Engines most often reporting it

CFM International CFM56 series 1Pratt & Whitney PT6A series 1Rolls-Royce RB-211 series 1

Approved replacement parts 4 parts manufacturer approvals

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

Alexandria Aircraft LLC 2Moog INC 1Lucas Aerospace INC 1

For these models most: Bellanca 17 Viking (2), Downer 14 (1), Boeing 787 Dreamliner (1), Boeing 747 (1).

Maker	Part	Replaces	Fits	Granted	Status
Moog INC	Control System Flaperon Control Module Assy And REU Assy C99257-003	C99257-003	Boeing 787-8, 787-9	2014-07-30	current
Alexandria Aircraft LLC	Control System 195500	Bellanca 195500	Bellanca 14-19-3A, 17-30, 17-31	2004-10-17	current
Alexandria Aircraft LLC	Control System 195500-30	Bellanca 195500-30	Bellanca 17-30A, 17-31A, 17-31ATC	2004-10-17	current
Lucas Aerospace INC	Control System Modification All Parts listed on Dwg 56300	Modification Parts	Boeing 747-122 serial numbers 19753, 19754, 19755	1994-06-23	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.