The U.S. aircraft register, updated daily
Parts · Rotorcraft systems

Flex Coupling

7 failure reports named the flex coupling in the last ten years, 33 since 1998, most often on the Air Tractor Inc AT-802; the condition most often found was "broken". 4 FAA approvals let 3 companies make a replacement flex coupling, Meggitt Polymer Solutions (Formerly Meggitt Silicone Products) holding the most (2).

Reports by year

01223199820062012201912026
Reports by year, as a table
reports
19981
20003
20012
20032
20053
20062
20072
20091
20102
20112
20122
20131
20141
20152
20171
20191
20201
20221
20252
20261

How it failed the condition found, last ten years

broken1contaminated1cracked1kinked1ruptured1separated1sheared1
Conditions found, as a table
reports
broken1
contaminated1
cracked1
kinked1
ruptured1
separated1
sheared1

Engines most often reporting it

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Embraer EMB-135 ERJ 135 and Legacy (3), Embraer EMB-145 ERJ 145 (2).

MakerPartReplacesFitsGrantedStatus
Meggitt OregonFlex Coupling, 900 w/Flange 56A001-103814852-3Embraer EMB-145ER, EMB-145LR, EMB-135ER2012-06-17current
Meggitt Polymer Solutions (Formerly Meggitt Silicone Products)Flex Coupling, 900 w/Flange 56A001-103814852-3Embraer EMB-135ER) (EMB-135LR) (EMB-145ER) (E...2008-05-21current
Meggitt Polymer Solutions (Formerly Meggitt Silicone Products)Flex Coupling 90 degree with flange 56A001-103814852-3Embraer EMB-135ER, EMB-135KL, EMB-135LR2008-05-21current
Jet Avion Corporation A Heico Aerospace CompanyFlex Coupling 9350M68G01JSE9350M68G01General Electric CF6-80A CF6-80A22006-10-11current

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.