The U.S. aircraft register, updated daily
Parts

Seal Entry

No failure report names the seal entry. 1 FAA approvals let 1 company make a replacement seal entry, Knots 2U LTD 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 seal entry and sell it as an approved part for the models named. These are the companies holding such approvals for a seal entry:

For these models most: Cessna 177 Cardinal (1).

MakerPartReplacesFitsGrantedStatus
Knots 2U LTDSeal (Front Entry Door0 ADS1200-401-23Aircraft Door Seals, LLC P/N ADS1200-401-23Cessna Aircraft Company 177, 177RG2017-07-09current

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.