The U.S. aircraft register, updated daily
Parts

Ground Fault

No failure report names the ground fault. 10 FAA approvals let 6 companies make a replacement ground fault, Astronics - Advanced Electronic Systems holding the most (3).

Approved replacement parts 10 parts manufacturer approvals

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

Astronics - Advanced Electronic Systems 3Mid Continent Controls, INC. 2General Dynamics Electronic Systems 2Primex Aerospace Company 1Pacific Electro Dynamics 1Mid Continent Controls INC 1

For these models most: Boeing 737 (5), Boeing 727 (3), Mcdonnell Douglas DC-9 (2), Douglas DC-9 (1), Boeing 747 (1).

MakerPartReplacesFitsGrantedStatus
Astronics - Advanced Electronic SystemsGROUND FAULT DETECTOR 436-2436-2Boeing 737-82019-11-25current
Astronics - Advanced Electronic SystemsGROUND FAULT DETECTOR 436-2436-2Boeing 737-82017-06-18current
Astronics - Advanced Electronic SystemsGROUND FAULT DETECTOR 436-2436-2Boeing 727-200 Series, 727-200F Series,...2016-07-12current
Mid Continent Controls INCGROUND FAULT INTERRUPTER (115/230) 106355-1106355-1Gulfstream G2802015-03-11current
Mid Continent Controls, INC.GROUND FAULT INTERRUPTER (115/230) 106355-1106355-1Gulfstream G2802014-04-14current
Mid Continent Controls, INC.GROUND FAULT INTERRUPTER (115/230) 106355-1106355-1Gulfstream G2802014-03-28current
General Dynamics Electronic SystemsGround Fault Detector 436-2Modification PartBoeing 727-100, 727-200, 737-1002001-03-27current
General Dynamics Electronic SystemsGround Fault Detector 436-2Modification PartMcDonnell Douglas DC-9-82, DC-9-832001-03-27current
Primex Aerospace CompanyGround Fault Detector 436-2436-2McDonnell Douglas DC-9-82, -832000-07-17current
Pacific Electro DynamicsGround Fault Detector 436-2Boeing 436-2Boeing 727-100, -200, 737-1001991-09-23current

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.