Parts · Electrical power

Toggle

3 failure reports named the toggle in the last ten years, 16 since 1995, most often on the Messerschmitt-Bolkow-Blohm BK 117; the condition most often found was "contaminated". 23 FAA approvals let 10 companies make a replacement toggle, Gemini Engineering holding the most (5). The reports call it "toggle", "toggle assy".

Reports by year

Reports by year, as a table

	reports
1995	1
1996	1
2000	2
2001	1
2002	1
2003	1
2004	1
2006	1
2012	1
2013	1
2014	2
2017	1
2021	1
2024	1

Which system the reports file it under last ten years

Electrical power1Rotorcraft systems1Airframe structure1

Reports by system, as a table

	reports
Electrical power	1
Rotorcraft systems	1
Airframe structure	1

Models most often reporting it last ten years

Messerschmitt-Bolkow-Blohm BK 1172

Models most reported, as a table

	reports
Messerschmitt-Bolkow-Blohm BK 117	2

How it failed the condition found, last ten years

contaminated1faulty1unknown1

Conditions found, as a table

	reports
contaminated	1
faulty	1
unknown	1

Engines most often reporting it

Turbomeca (Safran) ARRIEL 1E2 1

Approved replacement parts 23 parts manufacturer approvals

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

Gemini Engineering 5Phs/Mwa Aviation Services, Motor Winding Associates Division DBA Motor Winding Associates (Mwa) 3Gemini Engineering INC 3Spirit Aerosystems INC 2Phs/Mwa Aviation Services, Motor Winding Associates Division 2Phs/Mwa Aviation Services 2Kenmore Air Harbor INC 2Aviation Materials Management INC 2Lucas Aerospace Cargo System 1Adpma LLC 1

For these models most: Boeing 737 (12), Boeing 777 (11), Boeing 747 (11), Boeing 767 (8), Boeing 757 (6).

Maker	Part	Replaces	Fits	Granted	Status
Kenmore Air Harbor INC	Toggle Assembly - Cowling Fastener KAC2EC189	C2-EC-189A	Viking Air Limited DHC-2, Mk. I	2017-01-03	current
Kenmore Air Harbor INC	Toggle - Cowling Fastener KAC2EC225	C2-EC-225ND	Viking Air Limited DHC-2, Mk. I	2017-01-03	current
Phs/Mwa Aviation Services	Toggle 2740-2R	2740-2	BOEING 737-300 Series, 737-400 Series,...	2015-05-10	current
Phs/Mwa Aviation Services	Toggle 2740-2R	2740-2	BOEING 737-300 Series, 737-400 Series,...	2015-05-10	current
Aviation Materials Management INC	TOGGLE ASSY 161W3113-1	161W3113-1	Boeing 777-200 SERIES, 777-300 SERIES	2013-03-25	current
Aviation Materials Management INC	TOGGLE ASSY 161W4113-1	161W4113-1	Boeing 777-200 SERIES, 777-300 SERIES	2013-03-25	current
Phs/Mwa Aviation Services, Motor Winding Associates Division DBA Motor Winding Associates (Mwa)	Toggle 2740-2R	2740-2	Boeing 737-300 Series, 737-400 Series,...	2012-05-09	current
Phs/Mwa Aviation Services, Motor Winding Associates Division DBA Motor Winding Associates (Mwa)	Toggle 2740-2R	2740-2	Boeing 737-300 Series, 737-400 Series,...	2010-11-23	current
Gemini Engineering	TOGGLE ASSY 65B14184-1	65B14184-1	Boeing 747-100 Series, 747-200B Series,...	2009-11-15	current
Gemini Engineering INC	TOGGLE ASSY 65C34314-1	65C34314-1	Boeing 737-300 Series, 737-400 Series,...	2009-11-15	current
Gemini Engineering INC	TOGGLE ASSY 65B14184-1	65B14184-1	Boeing 747-100 Series, 747-200B Series,...	2009-11-15	current
Gemini Engineering INC	TOGGLE 65B63137-1	65B63137-1	Boeing 747-200B Series, 747-200C Series,...	2009-11-15	current
Spirit Aerosystems INC	KIT-TOGGLE 65C80739-1	65C80739-1	Boeing 737-300 SERIES, 737-400 SERIES,...	2009-05-17	current
Phs/Mwa Aviation Services, Motor Winding Associates Division DBA Motor Winding Associates (Mwa)	Toggle 2740-2R	2740-2	Boeing 737-300 Series, 737-400 Series,...	2009-05-14	current
Phs/Mwa Aviation Services, Motor Winding Associates Division	Toggle 2740-2R	2740-2	Boeing 737-300 Series, 737-400 Series,...	2009-05-03	current
Phs/Mwa Aviation Services, Motor Winding Associates Division	Toggle 2740-2R	2740-2	Boeing 737-300 Series, 737-400 Series,...	2008-09-30	current
Gemini Engineering	Upper Toggle Assy 161W3213-1	161W3213-1	Boeing 777-200LR Series, 777-300ER Series	2007-08-27	current
Gemini Engineering	Lower Toggle Assy 161W3212-1	161W3212-1	Boeing 777-200LR Series, 777-300ER Series	2007-08-27	current
Gemini Engineering	Toggle Assy 69-35336-3	69-35336-3	Boeing 737-300 Series, 737-400 Series,...	2007-08-27	current
Spirit Aerosystems INC	TOGGLE ASSY 314T3269-4	314T3269-4	Boeing 767-200 SERIES, 767-300 SERIES	2007-03-02	current
Adpma LLC	Toggle Assy 69-35336-2	69-35336-2	Boeing 737-200 Series, 737-200C Series,...	2007-02-27	current
Gemini Engineering	TOGGLE ASSY 69-35336-2	69-35336-2	Boeing 737-200 SERIES, 737-200C SERIES,...	2005-04-24	current
Lucas Aerospace Cargo System	Toggle 65B63137-1	LACSM 65B63137-1	Boeing 747-200, 300, 400	1997-05-19	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.