The U.S. aircraft register, updated daily
Parts · Flight controls

Speed Switch

8 failure reports named the speed switch in the last ten years, 15 since 1996, most often on the Boeing 737; the condition most often found was "defective". 7 FAA approvals let 3 companies make a replacement speed switch, Nextant Aerospace LLC holding the most (4).

Reports by year

012231996200732022
Reports by year, as a table
reports
19961
19971
20021
20051
20061
20072
20162
20171
20181
20191
20223

Which system the reports file it under last ten years

Reports by system, as a table
reports
Flight controls5
Instruments and avionics2
Propeller1

How it failed the condition found, last ten years

defective2faulty2failed1intermittent1loose1unknown1
Conditions found, as a table
reports
defective2
faulty2
failed1
intermittent1
loose1
unknown1

Approved replacement parts 7 parts manufacturer approvals

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

For these models most: Beechcraft 400 Beechjet (4), Bombardier CL-600 Challenger and CRJ (1).

MakerPartReplacesFitsGrantedStatus
Honeywell International INC.Speed Switch 128646-6128646-6MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100)2023-03-28current
Nextant Aerospace LLCSPEED SWITCH ASSEMBLY 373-93-1501Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCSPEED SWITCH FABRICATION 373-93-1511Modification PartRaytheon Aircraft Company 400A2016-03-10current
Nextant Aerospace LLCSPEED SWITCH ASSEMBLY 373-93-1501Modification PartRaytheon Aircraft Company 400A2014-08-12current
Nextant Aerospace LLCSPEED SWITCH FABRICATION 373-93-1511Modification PartRaytheon Aircraft Company 400A2014-08-12current
Woodward INCSpeed Switch Assembly 9901-301Allison 6873466Allison Engine 501-D13, D22C, D22G1993-07-28current
Woodward INCSpeed Switch Assembly 9901-300Allison 6873465Allison Engine 502-D22, D22A1993-07-28current

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.