The U.S. aircraft register, updated daily
Parts

Wels Antenna

No failure report names the wels antenna. 2 FAA approvals let 1 company make a replacement wels antenna, Securaplane Technologies holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Boeing 787 Dreamliner (2).

MakerPartReplacesFitsGrantedStatus
Securaplane TechnologiesWELS Antenna Unit 100-2600-012S836Z300-3012Boeing 787-9, 787-102020-05-20current
Securaplane TechnologiesWELS Antenna Unit 100-2600-012100-2600-01Boeing 787-82013-06-16current

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.