The U.S. aircraft register, updated daily
Parts

Rotary Variable

No failure report names the rotary variable. 32 FAA approvals let 4 companies make a replacement rotary variable, Kavlico Corporation holding the most (24).

Approved replacement parts 32 parts manufacturer approvals

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

Kavlico Corporation 24Curtiss-Wright Controls Integrated Sensing INC (Formerly Novatronics and Pickering Controls) 4Woodward Mpc 2Moog INC 2

For these models most: Gulfstream G-V Gulfstream V (19), Bombardier CL-600 Challenger and CRJ (5), Boeing 767 (2), Boeing 757 (2).

MakerPartReplacesFitsGrantedStatus
Kavlico CorporationRotary Variable Differential Transducer (RVDT) GM9344-1Vickers 49617-1Gulfstream G-V2016-01-12current
Kavlico CorporationRotary Variable Differential Transducer (RVDT) GM9346Vickers 71656-1Gulfstream G-V2016-01-12current
Kavlico CorporationRotary Variable Differential Transducer (RVDT) GM9584-116735-109Canadair CL600-2B19 Regional Jet 100 Series2016-01-12current
Kavlico CorporationRotary Variable Differential Transducer (RVDT) GM9344-1Vickers 49617-1Gulfstream G-V2015-09-21current
Kavlico CorporationRotary Variable Differential Transducer (RVDT) GM9346Vickers 71656-1Gulfstream G-V2015-09-21current
Kavlico CorporationRotary Variable Differential Transducer (RVDT) GM9584-116735-109Canadair CL600-2B19 Regional Jet 100 Series2015-09-21current
Moog INCRotary Variable Differential Transformer Assy [RVDT] CA83237-001[Kavlico P/N] GM6937-5 [Boeing P/N] B94760-005Boeing 757-200 Series, 757-200CB Series,...2012-09-14current
Moog INCRotary Variable Differential Transformer Assy [RVDT] CA83237-001[Boeing] B94760-005Boeing 757-200 Series, 757-200CB Series,...2012-01-12current
Kavlico CorporationRotary Variable Diffential Transducer (RVDT) GM9346Vickers 71656-1Gulfstream G-V2011-08-30current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM9584-116735-109Canadair CL-600-2B19 Regional Jet 100 Series2011-08-30current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10739Eaton Aerospace 71656-1Gulfstream GV2011-08-30current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10738Eaton Aerospace 71656-2Gulfstream GV2011-08-30current
Kavlico CorporationRotary Variable Diffential Transducer (RVDT) GM9344-1Vickers 49617-1Gulfstream G-V2011-08-30current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10737Eaton Aerospace 49617-2Gulfstream GV2011-08-30current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10739Eaton Aerospace 71656-1Gulfstream GV2005-12-13current
Kavlico CorporationRotary Variable Diffential Transducer (RVDT) GM9346Vickers 71656-1Gulfstream G-V2005-12-13current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10737Eaton Aerospace 49617-2Gulfstream GV2005-12-13current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10738Eaton Aerospace 71656-2Gulfstream GV2005-12-13current
Kavlico CorporationRotary Variable Diffential Transducer (RVDT) GM9344-1Vickers 49617-1Gulfstream G-V2005-12-13current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM9584-116735-109Bombardier, Inc. CL-600-2B19 Regional Jet 100 Series2005-12-13current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10737Eaton Aerospace 49617-2Gulfstream GV2003-05-18current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10739Eaton Aerospace 71656-1Gulfstream GV2003-05-18current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM10738Eaton Aerospace 71656-2Gulfstream GV2003-05-18current
Curtiss-Wright Controls Integrated Sensing INC (Formerly Novatronics and Pickering Controls)Rotary Variable Differential Transformer (RVDT) PC25533808734-1Pratt & Whitney PW4052, PW4056, PW40602002-12-05current
Curtiss-Wright Controls Integrated Sensing INC (Formerly Novatronics and Pickering Controls)Rotary Variable Differential Transformer (RVDT) PC253081680-654CFM International CFM56-2-C1, -C3, -C52002-06-04current
Curtiss-Wright Controls Integrated Sensing INC (Formerly Novatronics and Pickering Controls)Rotary Variable Differential Transformer (RVDT) PC25532Hamilton Sundstrand 808731-1 installed in...Pratt & Whitney PW4050, PW4052, PW40562001-08-12current
Curtiss-Wright Controls Integrated Sensing INC (Formerly Novatronics and Pickering Controls)Rotary Variable Differential Transformer (RVDT) PC25533Hamilton Sundstrand 808734-1 installed in...Pratt & Whitney PW4050, PW4052, PW40562001-08-09current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM9584-116735-109Bombardier, Inc. CL-600-2B19 Regional Jet 100 Series2001-06-11current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM9344-1Vickers 49617-1Gulfstream G-V2001-02-04current
Kavlico CorporationRotary Variable Differential Transformer RVDT GM9346Vickers71656-1Gulfstream G-V2001-02-04current
Woodward MpcRotary Variable Differential Transformer R21-A, Dwg R21-A Issue 16,...Boeing P/N S256T002-3 Rev D MPC P/N R21-ABoeing 767-2001986-05-19current
Woodward MpcRotary Variable Differential Transducer Y35A, Dwg Y35A Issue 9, dtd 8/5/85Boeing P/N S256T002-6 MPC P/N Y35ABoeing 767-2001986-05-19current

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.