The U.S. aircraft register, updated daily
Parts

Counter Weight

0 failure reports named the counter weight in the last ten years, 1 since 1996. 11 FAA approvals let 4 companies make a replacement counter weight, Wencor LLC holding the most (6).

Reports by year

0001111996
Reports by year, as a table
reports
19961

Approved replacement parts 11 parts manufacturer approvals

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

For these models most: Robinson R66 (1).

MakerPartReplacesFitsGrantedStatus
Brunner Machine Works, LLC.Counter Weight R66M-600R66M-600Robinson Helicopter Company R662019-10-01current
Wencor LLCCounter-Weight 534492CL2WE534492CL2Pratt & Whitney JT8D-15A, JT8D-17, JT8D-17A2014-05-08current
Wencor LLCCounter-Weight 534492CL3WE534492CL3Pratt & Whitney JT8D-15A, JT8D-17, JT8D-17A2014-05-08current
Wencor LLCCounter-Weight 534492CL1WE534492CL1Pratt & Whitney JT8D-15A, JT8D-17, JT8D-17A2014-05-08current
Wencor LLCCounter-Weight 534492CL1WE534492CL1Pratt & Whitney JT8D-15A, JT8D-17, JT8D-17A2010-02-02current
Wencor LLCCounter-Weight 534492CL2WE534492CL2Pratt & Whitney JT8D-15A, JT8D-17, JT8D-17A2010-02-02current
Wencor LLCCounter-Weight 534492CL3WE534492CL3Pratt & Whitney JT8D-15A, JT8D-17, JT8D-17A2010-02-02current
Jet Avion Corporation A Heico Aerospace CompanyCounter-Weight Turbine JA657801P&W 657801Pratt & Whitney JT8D-1, 1A, 1B1992-03-08current
Jet Avion Corporation A Heico Aerospace CompanyCounter-Weight Turbine JA657800P&W 657800Pratt & Whitney JT8D-1, 1A, 1B1992-03-08current
Jet Avion Corporation A Heico Aerospace CompanyCounter-Weight Turbine JA668636P&W 668636Pratt & Whitney JT8D-1, 1A, 1B1992-03-08current
Electro-Methods INCCounter-weight EM422634, N/C, dated 3-5-76422634, Revision C-1, dated 2-25-64Pratt & Whitney JT3D-1, -3, -3B1976-03-30current

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.