Parts · Heating, ice protection and utility systems

Terminal Block

54 failure reports named the terminal block in the last ten years, 211 since 1995, most often on the Bombardier CL-600 Challenger and CRJ; the condition most often found was "burned". 72 FAA approvals let 20 companies make a replacement terminal block, Russtech Engineering CO INC holding the most (28).

Reports by year

Reports by year, as a table

	reports
1995	1
1996	7
1997	6
1998	2
1999	5
2000	4
2001	7
2002	5
2003	8
2004	7
2005	7
2006	6
2007	13
2008	6
2009	7
2010	14
2011	14
2012	10
2013	13
2014	7
2015	8
2016	6
2017	7
2018	2
2019	7
2020	2
2021	6
2022	2
2023	6
2024	2
2025	10
2026	4

Which system the reports file it under last ten years

Reports by system, as a table

	reports
Heating, ice protection and utility systems	16
Electrical power	14
Airframe structure	7
Emergency equipment	4
Engine	3
Landing gear	3
Cabin, seats and restraints	2
Flight controls	2
Fuel system	2
Instruments and avionics	1

Models most often reporting it last ten years

Models most reported, as a table

	reports
Bombardier CL-600 Challenger and CRJ	13
Boeing 737	8
Airbus A321	5
Embraer EMB-145 ERJ 145	4
Boeing 767	3
Boeing 787 Dreamliner	3
Airbus A320	2
Boeing 757	2
Mcdonnell Douglas Aircraft Co MD-88	2
Agusta Aerospace Corp AW119	1
Airbus A319	1
Airbus A330	1

How it failed the condition found, last ten years

burned11smoke7broken5failed5damaged4defective4arced2faulted2melted2overheated2

Conditions found, as a table

	reports
burned	11
smoke	7
broken	5
failed	5
damaged	4
defective	4
arced	2
faulted	2
melted	2
overheated	2

Engines most often reporting it

General Electric GENX-1B74/75/ 1 International Aero Engines V2533-A5 1

Approved replacement parts 72 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas DC-9 (22), Mcdonnell Douglas Aircraft Co MD-88 (21), Mcdonnell Douglas MD-11 (10), Mcdonnell Douglas DC-10 (10), Embraer ERJ 190 E190 and E195 (6), Boeing 757 (6), Bombardier CL-600 Challenger and CRJ (5), Beechcraft 400 Beechjet (4), Embraer ERJ 170 E170 and E175 (3), Airbus A320 (3), Swearingen SA-26 (2), Piper PA-60 Aerostar (2).

Maker	Part	Replaces	Fits	Granted	Status
Miraj Corporation	Terminal Block M150SG1061	150SG1061	The Enstrom... 480, 480B	2026-03-23	current
Pratt & Whitney	Terminal Block, Nylon 5316882	5316882	Embraer S.A ERJ 190-300, ERJ 190-400	2026-02-26	current
Wencor, LLC	Terminal Block 768680WE	768680	Airbus SAS A330-223F, A330-243F, A330-841	2025-04-30	current
Miraj Corporation	Terminal Block Cover M739953	739953	MHI RJ Aviation ULC CL-600-2C11 (Regional Jet Series 550)	2024-01-18	current
Miraj Corporation	Terminal Block M739951	739951	MHI RJ Aviation ULC CL-600-2C11 (Regional Jet Series 550)	2024-01-18	current
Miraj Corporation	Terminal Block M160SG1061	Skurka/APC 160SG1061	Robinson Helicopter Company R66With Rolls Royce Starter...	2023-07-28	current
Miraj Corporation	Terminal Block M23032-1512	23032-1512	Textron Aviation Inc. B200GT, B200CGT, C90GT with Safran...	2022-09-21	current
Wencor LLC	Terminal Block, Radial 400SG1061-13WE	400SG1061-13	De Havilland... DHC-8-400 Series	2021-02-10	current
Pratt & Whitney	Terminal Block 5316882	5316882	Airbus Canada... BD-500-1A10BD-500-1A11	2021-01-25	current
Wencor LLC	Terminal Block – Inseparable Assembly 753335WE	753335	Airbus Boeing A300-600A300 Model B4-601, A300...	2020-10-15	current
Miraj Corporation	Terminal Block M739951	739951	Gulfstream Aerospace... GV, GV-SP) Fokker Services B.V. (,...	2020-05-20	current
Miraj Corporation	Terminal Block M739951	739951	Bombardier, Inc. CL-600-2C10, (Regional Jet Series...	2020-05-20	current
Miraj Corporation	Terminal Block Cover M739953	739953	Bombardier, Inc. CL-600-2C10, (Regional Jet Series...	2020-05-20	current
Wencor LLC	Terminal Block 769631WE	769631	BOEING 737-700 Series, 737-800 Series,...	2019-06-28	current
Thales Avionics INC	TERMINAL BLOCK, 7.5A, SIZE 20 311481-04	Modification Part	Airbus A320-232	2019-03-23	current
Thales Avionics INC	Terminal Block, 4x4 Bussed 311473-15	Modification Part	Boeing 737-8	2018-11-03	current
Miraj Corporation	Terminal Block Assembly M400SG1061-13	400SG1061-13	Bombardier Inc. DHC-8-400 Series	2018-10-21	current
Wencor LLC	Terminal Block Assembly 739951WE	739951	Bombardier, Inc. CL-600-2B19 (Regional Jet Series 100...	2018-02-01	current
Hartzell Engine Technologies LLC	Terminal Block CD21505	07D44	Aerostar Aircraft Corporation PA-60-600, PA-60-601, PA-60-601P	2016-06-07	current
United Technologies, Hamilton Sundstrand	TERMINAL BLOCK, INSEPARABLE ASSEMBLY 1022537-2	5316882	Pratt WhitneyCanada Corp PW1519G, PW1521G, PW1524G	2016-05-01	current
Nextant Aerospace LLC	Terminal Block L Bracket N995176	Modification Part	Raytheon Aircraft Company 400A	2016-03-10	current
Nextant Aerospace LLC	Terminal Block L Bracket N995156	Modification Part	Raytheon Aircraft Company 400A	2016-03-10	current
United Technologies, Hamilton Sundstrand	TERMINAL BLOCK, INSEPARABLE ASSEMBLY 1022537-2	5316882	PWC PW1519G, PW1521G, PW1524G	2016-02-17	current
Wencor LLC	Terminal Block - Inseparable Assembly 753335WE	753335	Airbus A300-600, A300 Model B4-601, A300...	2015-09-29	current
Nextant Aerospace LLC	Terminal Block L Bracket N995176	Modification Part	Raytheon Aircraft Company 400A	2014-08-12	current
Nextant Aerospace LLC	Terminal Block L Bracket N995156	Modification Part	Raytheon Aircraft Company 400A	2014-08-12	current
Duncan Aviation INC	Terminal Block Rail Mount Plate 120809033-6.0.1	Modification Part	Dassault-Aviation Mystere-Falcon 900	2014-05-07	current
Russtech Engineering CO INC	Terminal Block R-1420	5D0087-8	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-490	5D0087-1	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-1420	5D0087-8	McDonnell Douglas MD-11, MD-11F	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-420	5D0087-4	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-460	5D0087-3	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-1460	5D0087-6	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-340-A	R-340-A	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-1430	5D0087-7	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-920	R-920	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-480	5D0087-5	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-460	5D0087-3	McDonnell Douglas DC-10-10, -10F, -15	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-430	5D0087-2	McDonnell Douglas DC-10-10, -10F, -15	2012-07-26	current
Russtech Engineering CO INC	Terminal Block, Five Post R-930	R-930	McDonnell Douglas DC-9-14, -15, -15F	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-430	5D0087-2	McDonnell Douglas DC-9-11, -12, -13	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-420	5D0087-4	McDonnell Douglas DC-10-10, -10F, -15	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-490	5D0087-1	McDonnell Douglas DC-10-10, -10F, -15	2012-07-26	current
Russtech Engineering CO INC	Terminal Block R-480	5D0087-5	McDonnell Douglas DC-10-10, -10F, -15	2012-07-26	current
Bae Systems Controls INC	Terminal Block Assy - Component Mounting 69-70196-6	(69-70196-6)	The Boeing Company 757-200 Series	2012-05-15	current
Bae Systems Controls INC	Terminal Block Assy 69-70196-4	(69-70196-4)	The Boeing Company 757-200 Series	2012-05-15	current
Rsg Products INC	Terminal Block Mounting Bracket L32-42001-11	L32-42001-11	Eurocopter France EC120B	2012-03-22	current
Wencor LLC	Terminal Block 768680WE	768680	Airbus A330-200 Series Models A330-201,...	2010-02-02	current
Integrated Flight Systems INC	Terminal Block Mounting Bracket L32-42001-11	L32-42001-11	Eurocopter France EC120B	2009-07-07	current
Aar Aircraft Services INC	Terminal Block Provision Support Assy 08T3176-1	Modification Part	Boeing 767-400 series	2009-06-17	current
Goodrich Aerostructures (Formerly Rohr INC)	Terminal Block, Alumina S700M1565 REV	190-17402-901 REV. / 17/12/2005	Embraer Empresa ERJ 190-100 IGW ERJ 190-100 STD	2008-05-13	current
Goodrich Aerostructures (Formerly Rohr INC)	Terminal Block, Alumina S700M1565 REV	190-03003-401 REV. MK 25/1/2006	Embraer Empresa ERJ 190-100 LR	2008-05-13	current
Precision Conversions LLC	Terminal Block Instl - Electrical System, Cargo Door 007E5529	Modification Parts	Boeing 757-200 Series	2005-07-27	current
Bae Systems Controls INC	TERMINAL BLOCK assembly COMPONENT MOUNTING 69-70196-6	69-70196-6	Boeing 757-200 SERIES	2005-04-05	current
Bae Systems Controls INC	TERMINAL BLOCK assembly 69-70196-4	69-70196-4	Boeing 757-200 SERIES	2005-04-05	current
Flight Specialties Components Corporation, A Heico Subsidiary	Terminal Block FS753335	Hamilton Sundstrand 753335	Boeing 757-200, -200CB, -200PF series	2003-08-21	current
Goodrich Corporation	Terminal Block D-5735H-1	Modification Part	Aerospace Technologies N22B, N24A (TC A7PC) with Hartzell...	2003-06-18	current
Unison Industries	Terminal Block 420504	Pratt & Whitney 58T213	Pratt & Whitney PW4164, 4168	2002-09-18	current
C & D Associates	Terminal Block CD21505	Janitrol 07D44	Aerostar Aircraft PA-60-600, PA-60-601, PA-60	2002-09-09	current
Russtech Engineering CO INC	Terminal Block, Five Post R-930	R-930	McDonnell Douglas DC-9-14, -15, -15F	2000-02-09	current
Unison Industries	Terminal Block 420504	Pratt & Whitney 58T213	Pratt & Whitney 4164, 4168	1997-08-28	current
C & D Associates	Terminal Block RA-07D44	Janitrol 07D44, South Wind 414140	Miscellaneous "FAA-PMA Replacement Cross Reference...	1996-09-19	current
Russtech Engineering CO INC	Terminal Block R-420	McDonnell Douglas 5D0087-4	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-430	McDonnell Douglas 5D0087-2	McDonnell Douglas DC-10-10, -10F, -15	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-480	McDonnell Douglas 5D0087-5	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-1430	McDonnell Douglas 5D0087-7	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-490	McDonnell Douglas 5D0087-1	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-1420	McDonnell Douglas 5D0087-8	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-920	McDonnell Douglas R-920	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-340-A	McDonnell Douglas R-340-A	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-460	McDonnell Douglas 5D0087-3	McDonnell Douglas DC-10-10, -10F, -15	1994-04-12	current
Russtech Engineering CO INC	Terminal Block R-1460	McDonnell Douglas 5D0087-6	McDonnell Douglas DC-9-11, -12, -13	1994-04-12	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.