Compensator

194 failure reports named the compensator in the last ten years, 284 since 1995, most often on the Boeing 737; the condition most often found was "failed". 84 FAA approvals let 19 companies make a replacement compensator, Parker Hannifin CORP holding the most (20).

Reports by year

Reports by year, as a table

	reports
1995	2
1996	3
1997	6
1998	12
1999	4
2000	3
2001	6
2002	7
2003	4
2004	4
2005	2
2007	1
2008	2
2009	1
2010	2
2011	2
2012	10
2013	10
2014	4
2015	5
2016	33
2017	21
2018	19
2019	16
2020	9
2021	14
2022	26
2023	14
2024	15
2025	19
2026	8

Which system the reports file it under last ten years

Fuel system158Landing gear24Flight controls5Engine3Airframe structure2Heating, ice protection and utility systems2

Reports by system, as a table

	reports
Fuel system	158
Landing gear	24
Flight controls	5
Engine	3
Airframe structure	2
Heating, ice protection and utility systems	2

Models most often reporting it last ten years

Models most reported, as a table

	reports
Boeing 737	150
Honda Aircraft Company Llc HA-420	23
Bombardier CL-600 Challenger and CRJ	6
Airbus A300	3
Boeing 767	2
Mcdonnell Douglas MD-11	2
Airbus A319	1
Airbus A320	1
Airbus A321	1
Boeing 757	1
Construcciones Aeronauticas Sa C-212	1
Swearingen SA227	1

How it failed the condition found, last ten years

failed80faulty22faulted17out of limits17inoperative14out of tolerance11no test6leaking5malfunctioned4unreliable4

Conditions found, as a table

	reports
failed	80
faulty	22
faulted	17
out of limits	17
inoperative	14
out of tolerance	11
no test	6
leaking	5
malfunctioned	4
unreliable	4

Engines most often reporting it

CFM International CFM56-7B24/3 1 Garrett (Honeywell) TPE331-10R 1

Approved replacement parts 84 parts manufacturer approvals

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

Parker Hannifin CORP 20 Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt 17 Arrowhead Products 9 Scott Aviation (Now Avox Systems, INC.) 8 Scott Aviation 7 Ge Aviation LLC (Formerly Smiths Aerospace) 4 Senior Aerospace Ssp, Senior Operations INC 2 Pats Aircraft LLC 2 Lewis Engineering CO, Coltec Industries 2 Honeywell International INC 2 Aviation Materials Management INC 2 Avox Systems INC (Formerly Scott Aviation) 2 Turbine Kinetics INC, A Heico Aerospace Company 1 Hydro-Aire Incorporated 1 Howell Instruments 1 Honeywell Aerospace US LLC 1 Dec Technologies, INC. A Heico Aerospace Company 1 Aviation Materials Management, INC. 1 Aviation Materials Management, INC 1

For these models most: Boeing 747 (20), Boeing 737 (13), Mcdonnell Douglas DC-9 (10), Lockheed 382 (9), Mcdonnell Douglas Aircraft Co MD-88 (6), Boeing 777 (6), Boeing 757 (5), Douglas DC-9 (4), Mcdonnell Douglas DC-10 (3), Douglas DC-10 (3), Boeing 767 (3), Airbus A340 (3).

Maker	Part	Replaces	Fits	Granted	Status
Parker Hannifin CORP	Compensator Assy, Remote Upper Rudder 463430-1001	S252U304-3	Boeing 747-8 Series	2020-10-27	current
Hydro-Aire Incorporated	Compensator, Volume 138-057	9594786016	Pilatus PC-24	2020-02-18	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-04	S345A001-035	Boeing 737-8	2018-10-08	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-03	S345A001-034	Boeing 737-8	2018-10-08	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-04	S345A001-035	Boeing 737-8, 737-9	2018-02-27	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-03	S345A001-034	Boeing 737-8, 737-9	2018-02-27	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-04	20202-04	Boeing 737-8	2017-05-01	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-03	20202-03	Boeing 737-8	2017-05-01	current
Turbine Kinetics INC, A Heico Aerospace Company	Compensator, Bushing & Valves DEC569546	Eaton-Vickers P/N 569546	Boeing 747-200B Series, 747-400 Series,...	2016-01-17	current
Aviation Materials Management, INC	Compensator Assy 65B82749-6	65B82749-6	Boeing 747-400 Series, 747-400F Series	2015-02-12	current
Aviation Materials Management, INC.	Compensator Assy 65B82749-6	65B82749-6	Boeing 747-400 Series, 747-400F Series	2014-09-04	current
Parker Hannifin CORP	Compensator 050-049-101	050-049-101	Airbus A340-642	2013-10-20	current
Pats Aircraft LLC	Compensator Assembly 5945-2811-333-059	5945-2811-333-059	Fokker F28MK0100 limited to serial numbers...	2013-08-15	current
Pats Aircraft LLC	Compensator Assembly 5945-2811-333-061	5945-2811-333-061	Fokker F28MK0100 limited to serial numbers...	2013-08-15	current
Dec Technologies, INC. A Heico Aerospace Company	Compensator, Bushing & Valves DEC569546	Eaton-Vickers P/N 569546	Boeing 747-400F Series, 757-300...	2013-05-23	current
Aviation Materials Management INC	Compensator Assy 65B82749-6	65B82749-6	Boeing 747-400 Series, 747-400F Series	2013-02-27	current
Parker Hannifin CORP	Compensator 050-022-001	050-022-001	Boeing DC-9-14, DC-9-15, DC-9-15F	2012-06-26	current
Parker Hannifin CORP	Compensator 050-014-002	050-014-002	Boeing DC-9-81 (MD-81), DC-9-82 (MD-82),...	2012-06-26	current
Parker Hannifin CORP	Compensator 050-007-( )	050-007-( )	Boeing DC-10-10, DC-10-30, DC-10-40	2012-06-26	current
Parker Hannifin CORP	Compensator 050-014-003	050-014-003	Boeing DC-9-81 (MD-81), DC-9-82 (MD-82),...	2012-06-26	current
Parker Hannifin CORP	Compensator 050-014-001	050-014-001	Boeing DC-9-81 (MD-81), DC-9-82 (MD-82),...	2012-06-26	current
Parker Hannifin CORP	Compensator 050-022-002	050-022-002	Boeing DC-9-14, DC-9-15, DC-9-15F	2012-06-26	current
Parker Hannifin CORP	Compensator Assy, Remote Upper Rudder 463430-1001	S252U304-3	Boeing 747-8 Series	2012-05-13	current
Parker Hannifin CORP	Compensator Assy, Remote Upper Rudder 463430-1001	S252U304-3	Boeing 747-8 Series	2012-05-13	current
Parker Hannifin CORP	Compensator 050-014-002	050-014-002	Boeing DC-9-81 (MD-81), DC-9-82 (MD-82),...	2012-04-26	current
Parker Hannifin CORP	Compensator 050-022-001	050-022-001	Boeing DC-9-14, DC-9-15, DC-9-15F	2012-04-26	current
Parker Hannifin CORP	Compensator 050-014-003	050-014-003	Boeing DC-9-81 (MD-81), DC-9-82 (MD-82),...	2012-04-26	current
Parker Hannifin CORP	Compensator 050-014-001	050-014-001	Boeing DC-9-81 (MD-81), DC-9-82 (MD-82),...	2012-04-26	current
Parker Hannifin CORP	Compensator 050-007-( )	050-007-( )	Boeing DC-10-10, DC-10-30, DC-10-40	2012-04-26	current
Parker Hannifin CORP	Compensator 050-022-002	050-022-002	Boeing DC-9-14, DC-9-15, DC-9-15F	2012-04-26	current
Avox Systems INC (Formerly Scott Aviation)	Compensator Assy, Thermal 800847-16	Boeing P/N 800847-16	Boeing 747-8 Series, 747-8F Series	2012-04-01	current
Avox Systems INC (Formerly Scott Aviation)	Compensator Assy, Thermal 800847-19	Boeing P/N 800847-19	Boeing 747-8 Series, 747-8F Series	2012-04-01	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-02	(S345A001-030)	Boeing 737-600 SERIES, 737-700 SERIES,...	2012-03-29	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator Assembly, Narrow 20391-0101	60B92018-351	Boeing 747-8F SERIES	2011-12-19	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator Assembly, Wide Gap 20391-0102	60B92018-356	Boeing 747-8F SERIES	2011-12-19	current
Parker Hannifin CORP	Compensator Assy, Remote Upper Rudder 463430-1001	S252U304-3	Boeing 747-8F Series	2011-10-31	current
Parker Hannifin CORP	Compensator Assy, Remote Upper Rudder 463430-1001	S252U304-3	Boeing 747-8F Series	2011-10-31	current
Ge Aviation LLC (Formerly Smiths Aerospace)	Compensator 3U3201	AJG7010	McDonnell Douglas DC-10 Series DC-10 10, DC-10 30, DC-10 40	2007-11-07	current
Aviation Materials Management INC	Compensator Assy 65B82749-6	65B82749-6	Boeing 747-400 Series, 747-400F Series	2006-08-24	current
Scott Aviation (Now Avox Systems, INC.)	Compensator, Thermal 803917-02	803917-02	Airbus A340-541, A340-642	2004-03-16	current
Howell Instruments	Compensator BH17757	Modification Part	Sabreliner NA-265-80 with STC SA2719SW installed	2003-10-29	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20081-0000-0202	60B92018-56	Boeing 747-400 Series, 747-400D Series,...	2002-12-18	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20081-0000-0201	60B92018-51	Boeing 747-400 Series, 747-400D Series,...	2002-12-18	current
Honeywell International INC	Compensator, Temperature (Instl) 2524681	P&WC 2524681	Pratt & Whitney Canada PT6-A20	2002-11-14	current
Honeywell International INC	Compensator, Temperature (Instl) 2524195	P&WC 2524195	Pratt & Whitney Canada PT6A-6, A20	2002-11-14	current
Senior Aerospace Ssp, Senior Operations INC	Compensator, Pressure Balanced 1506373-102	672193-103	Lockheed L-1011-385-1, -385-1-14, -385-1-15	2001-11-10	current
Senior Aerospace Ssp, Senior Operations INC	Compensator, Bleed Air Wing 1506372-102	672219-103	Lockheed L-1011-385-1, -385-1-14, -385-1-15	2001-11-10	current
Scott Aviation (Now Avox Systems, INC.)	Compensator Assembly - Thermal 800847-20	800847-20	Boeing 737-700 IGW	2000-09-04	current
Scott Aviation	Compensator Assembly - Thermal 800847-20	800847-20	Boeing 737-700 IGW	2000-09-04	current
Parker Hannifin CORP	Compensator Assembly 395900-1001	8SC1072	Bombardier, Inc. DHC-8-400 Series	2000-04-25	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20251-0101	MDL BBJ0500	BOEING 737-700(IGW)	1999-10-03	current
Ge Aviation LLC (Formerly Smiths Aerospace)	Compensator Assembly, Cartridge 1U1065	Boeing 10-60560-1	Boeing 727	1998-09-22	current
Ge Aviation LLC (Formerly Smiths Aerospace)	Compensator Assembly, Cartridge 1U1077	Boeing 10-60560-2	Boeing 727	1998-09-22	current
Ge Aviation LLC (Formerly Smiths Aerospace)	Compensator Assembly 3U3211-1	McDonnell Douglas 3U3211-1	McDonnell Douglas MD-11, -11F, MD-11	1998-09-22	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20202-01	S345A001-020	Boeing 737-800, 737-700	1998-04-19	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20081-0000-0201	No Unique Part Number	Boeing 747-100, -100B, -100B SUD	1997-08-07	current
Honeywell Aerospace US LLC	Compensator Assembly FG1A-21	OEM	McDonnell Douglas DC-8 Series All	1995-10-19	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 20097-0101	No Unique part number	Airbus A340-211, -212, -311	1995-10-19	current
Parker Hannifin CORP	Compensator Assembly 3870127-102	Boeing S271T480-1	Boeing 767-200, -300	1995-08-24	current
Scott Aviation (Now Avox Systems, INC.)	Compensator assembly, thermal 804185-02	804185-02	Boeing 777-200	1995-05-23	current
Scott Aviation (Now Avox Systems, INC.)	Compensator assembly, thermal 804185-01	804185-01	Boeing 777-200	1995-05-23	current
Scott Aviation (Now Avox Systems, INC.)	Compensator assembly, thermal 804185-03	804185-03	Boeing 777-200	1995-05-23	current
Scott Aviation	Compensator assembly, thermal 804185-02	804185-02	Boeing 777-200	1995-05-23	current
Scott Aviation	Compensator assembly, thermal 804185-01	804185-01	Boeing 777-200	1995-05-23	current
Scott Aviation	Compensator assembly, thermal 804185-03	804185-03	Boeing 777-200	1995-05-23	current
Scott Aviation (Now Avox Systems, INC.)	Compensator assembly, thermal 803977-02	9303755-002	Saab Aircraft AB 2000	1995-01-19	current
Scott Aviation	Compensator assembly, thermal 803977-02	9303755-002	Saab Aircraft AB 2000	1995-01-19	current
Arrowhead Products	Compensator 10146-25	Lockheed 695506-25	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10265-12	Lockheed 695435-12	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10146-34	Lockheed 695506-34	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10265-6	Lockheed 695435-6	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10265-14	Lockheed 695435-14	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10146-33	Lockheed 695506-33	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10146-35	Lockheed 695506-35	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10265-1	Lockheed 695435-1	Lockheed 382 Series	1994-03-20	current
Arrowhead Products	Compensator 10146-37	Lockheed 695506-37	Lockheed 382 Series	1994-03-20	current
Scott Aviation (Now Avox Systems, INC.)	Compensator Assembly - Thermal 800847-20		Boeing 757-200 A2NM	1992-06-08	current
Scott Aviation (Now Avox Systems, INC.)	Compensator Assembly - Thermal 800847-19		Boeing 747-100, -300, -300	1992-06-08	current
Scott Aviation	Compensator Assembly - Thermal 800847-19		Boeing 747-100, -300, -300	1992-06-08	current
Scott Aviation	Compensator Assembly - Thermal 800847-20		Boeing 757-200 A2NM	1992-06-08	current
Lewis Engineering CO, Coltec Industries	Compensator 3100047 Env Dwg, 3433604...	No Aerospatiale part number	Aerospatiale ATR42-200, ATR42-300, ATR42-320 (TC A53EU)	1992-04-06	current
Lewis Engineering CO, Coltec Industries	Compensator 3100040 Env Dwg, 3433603...	No Aerospatiale part number	Aerospatiale ATR42-200, ATR42-300, ATR42-320 (TC A53EU)	1992-04-06	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 391041-026	Boeing 10-61219-121	Boeing 737-300, -400, -500	1991-05-30	current
Simmonds Precision Products INC Goodrich Sensors and Integrated Systems - Vt	Compensator 391041-027	Boeing 10-61219-121	Boeing 737-300, -400, -500	1991-05-30	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.