The U.S. aircraft register, updated daily
Parts

Interior Conversion

No failure report names the interior conversion. 1 FAA approvals let 1 company make a replacement interior conversion, Zantop International Airlines INC holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

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

For these models most: Boeing 747 (1).

MakerPartReplacesFitsGrantedStatus
Zantop International Airlines INCInterior Conversion Passenger to Freighter, with Side-Cargo-Door Index List 1-380Modification PartBoeing 747-200B1995-03-19current

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.