The U.S. aircraft register, updated daily
Parts

Semi Portable

No failure report names the semi portable. 5 FAA approvals let 2 companies make a replacement semi portable, Precise Flight Incorporated holding the most (4).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Lancair Company LC-40 (2), Cirrus SR22 (2), Cirrus SR20 (2), Columbia Aircraft Mfg LC42 (1).

MakerPartReplacesFitsGrantedStatus
Precise Flight IncorporatedSemi Portable Oxygen System W/ A4 Flowmeter Instl 005N0001-2Modification PartColumbia Aircraft... LC42-550FG LC40-550FG2007-05-16current
Precise Flight IncorporatedSemi Portable Oxygen System W/ A5 Flowmeter Instl 005N0001-1Modification PartColumbia Aircraft... LC40-550FG LC42-550FG2007-05-16current
Precise Flight IncorporatedSemi Portable Oxygen System W/ A4 Flowmeter Installation 003N0001-2Modification PartCirrus Design Corporation SR20, SR222007-05-16current
Precise Flight IncorporatedSemi Portable Oxygen System W/ A5 Flowmeter 003N0001-1Modification PartCirrus Design Corporation SR20, SR222007-05-16current
Precise Flight INCSemi-Portable Oxygen System 005N0000Modification PartLancair LC40-550FG2002-03-17current

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.