The U.S. aircraft register, updated daily
Parts

Lip Seal

No failure report names the lip seal. 5 FAA approvals let 5 companies make a replacement lip seal, Turbine Kinetics INC, Subsidiary of Heico CORP holding the most (1).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Boeing 747 (2), Boeing 767 (1), Airbus A340 (1), Airbus A330 (1).

MakerPartReplacesFitsGrantedStatus
Core Parts LLCLip Seal, Teflon 3059046-01CP3059046-01Pratt & Whitney Canada PT6A-6, -6A, -6B2021-01-05current
Airbus Helicopters, INC.Lip Seal 366A211204.20366A211204Airbus Helicopters SA-366G12017-08-22current
Turbine Kinetics INC, A Heico Aerospace CompanyLip Seal 776-421KT776-421Airbus A330-200 Series Models A330-201,...2015-10-25current
Turbine Kinetics INC, Subsidiary of Heico CORPLip-Seal KTQA2064QA2064Boeing 747-400 Series, 747-400D Series,...2010-09-20current
Airborne ComponentsLip Seal, Output Shaft AC203219Fairchild Controls 203219Boeing 747-100, -200B, -200F1999-05-03current

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.