The U.S. aircraft register, updated daily
Parts

Vent Plug

No failure report names the vent plug. 4 FAA approvals let 2 companies make a replacement vent plug, Seal Dynamics INC holding the most (2).

Approved replacement parts 4 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Seal Dynamics INCVent Plug 1B2288-01SD1B2288-01Pratt & Whitney PW2037, PW2037M, PW20402026-06-30current
Seal Dynamics INCVent Plug 1B2288-01SD1B2288-01International Aero... V2500-A1, V2522-A5, V2524-A52026-06-30current
Hartzell Engine Technologies LLCVent Plug, Pressure ES3179M3179Continental... LTSIO-360-E, LTSIO-360-EB, LTSIO-360-KB2024-05-20current
Hartzell Engine Technologies LLCVent Plug, Pressure ES3179M3179Lycoming Engines IO-540-AA1B5, IO-540-AG1A5, LTIO-540-J2B2024-05-20current

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.