The U.S. aircraft register, updated daily
Parts

Voltage Regulator

No failure report names the voltage regulator. 161 FAA approvals let 14 companies make a replacement voltage regulator, Hartzell Engine Technologies LLC holding the most (72).

Approved replacement parts 161 parts manufacturer approvals

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

For these models most: Beechcraft 35 Bonanza and Debonair (22), Beechcraft F33 Bonanza (20), Beechcraft E33 (20), Cessna 180 Skywagon (19), Beechcraft 95 Travel Air and Baron 55 (17), Beechcraft E95 (15), Beechcraft B95 (15), Piper PA-38 Tomahawk (14), Beechcraft H35 (14), Beechcraft D95 (14), Beechcraft P35 (11), Beechcraft N35 (11).

MakerPartReplacesFitsGrantedStatus
Lamar Technologies LLCVoltage Regulator 14V VR300-14-50Beech 35-380142-9Hawker Beechcraft 35-B33, 35-C33, E332013-06-23current
Lamar Technologies LLCVoltage Regulator 14V VR300-14-50Cessna 0413205-7, 0413205-9, 0413205-11CESSNA 180, 180A, 180H2013-06-23current
Lamar Technologies LLCVoltage Regulator 14V VR200APiper 484121 Electrosystems VR200Piper Aircraft Inc. PA-38-1122013-06-23current
Lamar Technologies LLCVoltage Regulator 28V VR300-28-40Beech 35-380142-15Hawker Beechcraft 95, 95-55, 95-A552013-06-23current
Lamar Technologies LLCVoltage Regulator 28V VR300-28-25Beech 35-380142-13Hawker Beechcraft 95, 95-55, 95-A552013-06-23current
Lamar Technologies LLCVoltage Regulator 14V VR300-14-20Cessna 0413205-4, 0413205-5, 0413205-12CESSNA 120, 140, 140A2013-06-23current
Lamar Technologies LLCVoltage Regulator 14V VR300-14-35Beech 35-380142-7Hawker Beechcraft 23, 35-B33, 35-C332013-06-23current
Lamar Technologies LLCVoltage Regulator 14V VR600Cessna C6611001-0201CESSNA 150K, 150L, 150M2013-06-23current
Lamar Technologies LLCVoltage Regulator 14V VR600Beech 33-38001DHawker Beechcraft 35-A33, 35-B33, 35-C332013-06-23current
Lamar Technologies LLCVoltage Regulator 14V VR300-14-35Cessna 0413205-6, 0413205-8, 0413205-10CESSNA 1802013-06-23current
Lamar Technologies LLCVoltage Regulator 28V VSF-7403AContinental 649684-2CESSNA 207, 207A, 320D2013-06-13current
Lamar Technologies LLCVoltage Regulator 28V VR515GAElectrosystems VR515G CESSNA C611005-103CESSNA 152, 172, 172A2013-06-13current
Lamar Technologies LLCVoltage Regulator 28V VR500-0101CESSNA C611004-0101CESSNA 337, 337A (USAF 02B), 337B2013-06-13current
Lamar Technologies LLCVoltage Regulator 14V VSF-7203APitts Aerobatic 61230, Continental 649684-1Aviat Aircraft Inc. S-1S, S-1T, S-22013-06-13current
Lamar Technologies LLCVoltage Regulator 28V VR500-0102CESSNA C611004-0102CESSNA 337, 337A (USAF 02B), 337B2013-06-13current
Lamar Technologies LLCVoltage Regulator 28v VR286Lamar Inc. B-00306-1 B-00306-2Hawker Beechcraft Corporation 56TC, 58, 58A2013-05-13current
Lamar Technologies LLCVoltage Regulator 28v VR286Lamar Inc. B-00306-3 Aerostar 584042Aerostar Aircraft Corporation PA-60-601 (Aerostar 601), PA-60-601P...2013-05-13current
Lamar Technologies LLCVoltage Regulator 28v VR286Lamar Inc. B-00286-1 Piper 550390Piper Aircraft Inc. PA-23-235, PA-23-250, PA-312013-05-13current
Lamar Technologies LLCVoltage Regulator 28v VR286Lamar Inc. B-00296-1 B-00296-2 B-00296-3...Cessna Aircraft Company 320, 320-1, 320A2013-05-13current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-40Beech 35-380142-15Beech 95-B55, 95-C55, 95-A552013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-25Beech 35-380142-13Beech D95A, E95, 95-B552013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR300-14-50Cessna 0413205-7, -9Cessna 180, 180A, 180H2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Cessna 0413205-4, -5, -12Cessna 120, 140, 140A2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR415Mooney 880016-501Mooney M20J and M20K.2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00286-1, Piper 550390Piper PA-23-235, -250, PA-312013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR600AElectrosystems VR600, Beech 33-38001D, Cessna...Beech series 35C33, 35B33, 35A332013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR300-14-35Cessna 0413205-6, -8Cessna 1802013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 28V VR500-0102Cessna C611004-0102Cessna Model 3372013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-200Piper 484121Piper PA-382013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-35Beech 35-380142-7Beech 23, 35-B33, 35-C332013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Beech 35-380142-7Beech 23, 35-B33, 35-C332013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-200APiper 484121, Electrosystems Model VR-200Piper PA-382013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 14V VSF-7203APitts Aerobatic 61230, Continental 649684-1Pitts S-1S, S-1T, S-22013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-382Lamar, Inc. B-00382-1Piper PA-31P-350, PA-34-220T, PA-46-3102013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-50Beech 35-380142-9Beech 35-B33, 35-C33, E332013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 28V VR500-0101Cessna C611004-0101Cessna Model 3372013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00306-1, B-00306-2, B-00306-3Beech series 55, A55, B552013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-20Cessna 0413205-4, -5, -12Cessna 120, 140, 140A2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00306-3, Piper 584042Piper PA-60, -601, -601P2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR515GAElectrosystems VR515G, Cessna C611005-103Cessna series 152, 172, 1822013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-28Beech 35-380142-15Beech 95-B55, 95-C55, 95-A552013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Cessna 04-13205-7, -9, -11Cessna 180, 180A, 180H2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-50Cessna 04-13205-7, -9, -11Cessna 180, 180A, 180H2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-28Beech 35-380142-13Beech D95A, E95, 95-B552013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-580Cessna C611008-0101Cessna 2082013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR371Piper 557337, Lamar Inc B-00371-1Piper PA-28 Series, PA-32 Series, PA-382013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-515FCessna C611501-0102Cessna 152, A152, 1722013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-35Cessna 0413205-6, -8, -10Cessna 1802013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00296-1, B-00296-2, B-00296-3,...Cessna Series 300 & 4002013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Beech 35-380142-9Beech 35-B33, 35-C33, E332013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Cessna 0413205-6, -8, -10Cessna 1802013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator VR-392Lamar, Inc. B-00392-1Piper PA-44-180, 180T2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR300-14-20Cessna 0413205-4, -5Cessna 120, 140, 140A2013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR600Beech 33-38001D, Cessna C6611001-0201Beech Models 35C33, 35B33, 35A332013-02-24current
Hartzell Engine Technologies LLCVoltage Regulator 24V VSF-7403AContinental 649684-2Aero Commander Aero Commander, 500A, with Colemill...2013-02-24current
Lamar Technologies LLCVoltage Regulator with Over-voltage Protection, 28V B-00387-1B-00387-1, 36-380096-1Hawker Beechcraft E33, E33A, E33C2012-10-28current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00267-2American Champion Bellanca) (Champion) (Trytek)...2012-10-28current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00331-2, 484-121Piper Aircraft, Inc. PA-28-140, PA-28-150, PA-28-1512012-10-28current
Lamar Technologies LLCVoltage Regulator with Over-voltage Protection, 14V B-00403-1B-00403-1, 35-380093-3Hawker Beechcraft E33, E33A, E33C2012-10-28current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00267-2CPAC, Inc 112, 112B, 112TC2012-10-28current
Lamar Technologies LLCVoltage Regulator, 14V DGR6-1DGR6, C611001-0101, C611001-0102, C611001-0201Cessna 150K, A150K, 150L2012-10-28current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00331-1, 1816110CPAC, Inc 112, 112B, 112TC2012-10-28current
Lamar Technologies LLCVoltage Regulator with Over-voltage Protection, 14V B-00403-1B-00403-1, 880016-501Mooney M20, M20A, M20B2012-10-28current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00267-2, 450-392Piper Aircraft, Inc. PA-24, PA-24-250, PA-24-2602012-10-28current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00267-2, 169-380063Hawker Beechcraft 19A, B19, M19A2012-10-28current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00331-3Enstrom F-28, F28A, F-28C2012-10-28current
Lamar Technologies LLCVoltage Regulator, 14V DGR6-1DGR6, C611001-0101, C611001-0102, C611001-0201Cessna 150K, A150K, 150L2012-01-09current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00331-3Enstrom F-28, F28A, F-28C2010-12-14current
Lamar Technologies LLCVoltage Regulator with Over-voltage Protection, 28V B-00387-1B-00387-1, 36-380096-1Hawker Beechcraft E33, E33A, E33C2010-12-14current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00267-2CPAC, Inc 112, 112B, 112TC2010-12-14current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00267-2, 450-392Piper Aircraft, Inc. PA-24, PA-24-250, PA-24-2602010-12-14current
Lamar Technologies LLCVoltage Regulator with Over-voltage Protection, 14V B-00403-1B-00403-1, 35-380093-3Hawker Beechcraft E33, E33A, E33C2010-12-14current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00331-2, 484-121Piper Aircraft, Inc. PA-28-140, PA-28-150, PA-28-1512010-12-14current
Lamar Technologies LLCVoltage Regulator with Over-voltage Protection, 14V B-00403-1B-00403-1, 880016-501Mooney M20, M20A, M20B2010-12-14current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00331-1, 1816110CPAC, Inc 112, 112B, 112TC2010-12-14current
Lamar Technologies LLCVoltage Regulator, Type I, 14V B-00331-2B-00267-2, 169-380063Hawker Beechcraft 19A, B19, M19A2010-12-14current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00306-1, B-00306-2, B-00306-3Beech series 55, A55, B552010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-20Cessna 0413205-4, -5, -12Cessna 120, 140, 140A2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR300-14-20Cessna 0413205-4, -5Cessna 120, 140, 140A2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00286-1, Piper 550390Piper PA-23-235, -250, PA-312010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR371Piper 557337, Lamar Inc B-00371-1Piper PA-28 Series, PA-32 Series, PA-382010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Beech 35-380142-7Beech 23, 35-B33, 35-C332010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Cessna 0413205-6, -8, -10Cessna 1802010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR600AElectrosystems VR600, Beech 33-38001D, Cessna...Beech series 35C33, 35B33, 35A332010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-50Beech 35-380142-9Beech 35-B33, 35-C33, E332010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-28Beech 35-380142-15Beech 95-B55, 95-C55, 95-A552010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00296-1, B-00296-2, B-00296-3,...Cessna Series 300 & 4002010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Cessna 0413205-4, -5, -12Cessna 120, 140, 140A2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-515FCessna C611501-0102Cessna 152, A152, 1722010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-25Beech 35-380142-13Beech D95A, E95, 95-B552010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 28V VR500-0101Cessna C611004-0101Cessna Model 3372010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Beech 35-380142-9Beech 35-B33, 35-C33, E332010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 14V VSF-7203APitts Aerobatic 61230, Continental 649684-1Pitts S-1S, S-1T, S-22010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-14Cessna 04-13205-7, -9, -11Cessna 180, 180A, 180H2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-50Cessna 04-13205-7, -9, -11Cessna 180, 180A, 180H2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR515GAElectrosystems VR515G Cessna C611005-103Cessna series 152, 172, 1822010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-382Lamar, Inc. B-00382-1Piper PA-31P-350, PA-34-220T, PA-46-3102010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-580Cessna C611008-0101Cessna 2082010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR300-14-50Cessna 0413205-7, -9Cessna 180, 180A, 180H2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-35Cessna 0413205-6, -8, -10Cessna 1802010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-392Lamar, Inc. B-00392-1Piper PA-44-180, 180T2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 14V VR-300-35Beech 35-380142-7Beech 23, 35-B33, 35-C332010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR415Mooney 880016-501Mooney M20J and M20K.2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR300-14-35Cessna 0413205-6, -8Cessna 1802010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-40Beech 35-380142-15Beech 95-B55, 95-C55, 95-A552010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 14V VR600Beech 33-38001D Cessna C6611001-0201Beech Models 35C33, 35B33, 35A332010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator, 28V VR-300-28Beech 35-380142-13Beech D95A, E95, 95-B552010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-200APiper 484121 Electrosystems Model VR-200Piper PA-382010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 28V VR500-0102Cessna C611004-0102Cessna Model 3372010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-286Lamar Inc. B-00306-3, Piper 584042Piper PA-60, -601, -601P2010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator VR-200Piper 484121Piper PA-382010-10-21current
Hartzell Engine Technologies LLCVoltage Regulator 24V VSF-7403AContinental 649684-2Aero Commander Aero Commander, 500A, with Colemill...2010-10-21current
Olympic Aero Services INCVoltage Regulator Unit (VRU) Assembly 54-24203Modification PartCessna 172S, 172R, 182S2007-04-23current
Ge Aviation Systems, LLCVoltage Regulator 3S2060DR149A1AMarquardt P/N 226358McDonnell Douglas DC-102005-12-05current
B/E Aerospace INCVoltage Regulator and Dimmer ELP20-28-03ELP20-28-03Gulfstream G-IV2005-12-01current
Phoenix Aerospace INCVoltage Regulator BG-1010-24-8AModification PartLearjet 35, 35A, 362001-05-03current
Phoenix Aerospace INCVoltage Regulator BG-1010-24-8AModification PartLearjet 35, 35A, 362001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-1AdeHavilland Inc. VR1010-24-1AdeHavilland DHC-62001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-2AWModification PartdeHavilland DHC-32001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-6EModification PartCessna 207, 207A, T2072001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-2Ade Havilland Inc. 1010-24-2AdeHavilland DHC-62001-05-03current
Phoenix Aerospace INCVoltage Regulator SB-1010-24-2EShorts SB-1010-24-2EShort Brothers Skyvan SC-72001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-2AModification PartPolskie Zaklady... PZL M18 and PZL M18A2001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-2AModification PartRaytheon 65-A90, B-90, C-90 s/n LJ-114...2001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-6EModification PartRaytheon A36, A36TC2001-05-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-2AModification PartRaytheon -60 s/n P-4 through 126 except s/n...2001-05-03current
Lamar Technologies LLCVoltage Regulator Type I B-00331-2484-121Piper PA-381999-05-31current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-2AModification PartBeech Raytheon) (-60 s/n P-4 thru 126...1998-04-19current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-6EModification PartBeech Raytheon) (A36, A36TC, TU206G: S/Ns...1997-08-11current
Electrosystems INCVoltage Regulator VR515GAElectrosystems VR515G, Cessna C611005-103Cessna Single Engine Aircraft with 28 Volt...1997-04-03current
Electrosystems INCVoltage Regulator VR600AElectrosystems VR600, Beech 33-38001D, Cessna...Beech Raytheon) (35C33, 35B33, 35A331997-04-03current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-1AdeHavilland Inc. VR1010-24-1AdeHavilland DHC-61997-03-05current
Phoenix Aerospace INCVoltage Regulator SB-1010-24-2EShorts SB-1010-24-2EShort Brothers Skyvan SC-71996-08-21current
Phoenix Aerospace INCVoltage Regulator VR 1010-24-2Ade Havilland Inc. DH 1010-24-2AdeHavilland DHC-61996-01-24current
Hamilton Sundstrand CorporationVoltage Regulator 939D217-( )Douglas 939D217-( )McDonnell Douglas DC-9, Series 11, 121996-01-11current
Hamilton Sundstrand CorporationVoltage Regulator #905D977-3, -4 Dwg....Boeing P/N's 10-3296-6 & 10-3324-6Boeing 707, 720, 7271995-03-26current
Hamilton Sundstrand CorporationVoltage Regulator #939D150-2 Dwg. No. Dwg. 939D150 Rev. AB, Dtd. 6/4/79 0r...Boeing P/N 10-3296-20Boeing 7271995-03-26current
Electrosystems INCVoltage Regulator VR-580Cessna C611008-0101Cessna 2081994-10-25current
Electrosystems INCVoltage Regulator VR-392Lamar, Inc. B-00392-1Piper PA-44-180, -180T1994-09-27current
Electrosystems INCVoltage Regulator VR-382Lamar, Inc. B-00382-1Piper PA-31P-350, PA-34-220T, PA-46-3101994-09-27current
Hamilton Sundstrand CorporationVoltage Regulator 939D150-2Boeing 10-3296-20Boeing 7271994-09-07current
Electrosystems INCVoltage Regulator VR371Piper 557337 or Lamar B-00371-1 as shown on...Piper PA-28, -32 Series, PA-381994-08-25current
Phoenix Aerospace INCVoltage Regulator VR-1010-24-2GAModification PartGulfstream G-1159 S/Ns 1 thru 300 except those...1994-08-01current
Skytronics INCVoltage Regulator J12M24SPWeatherly J12M24SPWeatherly 620A, 620B1994-05-05current
Sundstrand Electric Power SysVoltage Regulator 939D150-2Boeing 10-3296-20Boeing 7271993-12-16current
Sundstrand Electric Power SysVoltage Regulator 905D977-3, -4boeing 10-3296-6, 10-3324-6Boeing 707, 720, 7271993-12-16current
Electrosystems INCVoltage Regulator VR-200APiper 484121 Electrosystem Model VR-200Piper PA-381992-05-11current
Electrosystems INCVoltage Regulator VR-200Piper 484121Piper PA-381992-02-05current
Westinghouse Electric CORP, Electrical Systems DivVoltage Regulator 905D977-3, -4Boeing 10-3296-6, 10-3324-6Boeing 707, 720, 7271991-09-10current
Westinghouse Electric CORP, Electrical Systems DivVoltage Regulator 939D150-2Boeing 10-3296-20Boeing 7271991-09-10current

The first 150 of 161.

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.