The U.S. aircraft register, updated daily
Parts

Ksr Amp

No failure report names the ksr amp. 4 FAA approvals let 1 company make a replacement ksr amp, Hartman Electrical Mfg holding the most (4).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Short Bros SD3 (1).

MakerPartReplacesFitsGrantedStatus
Hartman Electrical MfgKSR 400 Amp 28 V. A-703FBHartman Elect. A-703FBShort Brothers SD3-30, -601993-10-20current
Hartman Electrical MfgKSR 300 Amp 28 V. A-770RGHartman Elect. A-770RGIndustrie... P.166DL31993-10-20current
Hartman Electrical MfgKSR 400 Amp 28 V. A-703FSSHartman Elect. A-703FSSRaytheon BAe.125-8001993-10-20current
Hartman Electrical MfgKSR 400 Amp 28 V. A-703FSHartman Elect. A-703SFokker F.28 Mark 40001993-10-20current

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.