The U.S. aircraft register, updated daily
Parts

Cert Sftwr

No failure report names the cert sftwr. 1 FAA approvals let 1 company make a replacement cert sftwr, Delta Flight Products 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 cert sftwr and sell it as an approved part for the models named. These are the companies holding such approvals for a cert sftwr:

For these models most: Airbus A321 (1).

MakerPartReplacesFitsGrantedStatus
Delta Flight ProductsCERT SFTWR KIT A321 A0031-05A0031-05Airbus A321-271NX2022-07-12current

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.