The U.S. aircraft register, updated daily
Parts

Top Seal

No failure report names the top seal. 7 FAA approvals let 3 companies make a replacement top seal, Rdf Corporation holding the most (4).

Approved replacement parts 7 parts manufacturer approvals

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

For these models most: Beechcraft G58 (2), Beechcraft B36 Bonanza (2), Beechcraft A36 Bonanza (2), Beechcraft 58 Baron (2), Beechcraft 36 Bonanza (2), Boeing 777 (1).

MakerPartReplacesFitsGrantedStatus
Knots 2U LTDTop Aft Seal (Aft Utility Door) ADS1200-3-1ADS1200-3-1Hawker Beechcraft 36, A36, A36TC2017-07-09current
Knots 2U LTDFwd Top Seal (Aft Utility Door) ADS1200-3-7Aircraft Door Seals, LLC P/N ADS1200-3-7Hawker Beechcraft 36, A36, A36TC2017-07-09current
Aviation Materials Management INCTOP KIT-SEAL 005W3195-1005W3195-1Boeing 777-200 SERIES, 777-300 SERIES2013-03-25current
Rdf CorporationTOP SEAL PLATE 55163Pratt & Whitney P/N 3120495-01Pratt & Whitney PW119B, 119C, 1202001-06-19current
Rdf CorporationTop Seal Plate 55163Pratt & Whitney 3120495-01Pratt & Whitney PW119B, 119C, 1202000-12-05current
Rdf CorporationTop Seal Plate 55163 Rev. -, Dated 08/06/97Pratt & Whitney P/N 3120495-01Pratt & Whitney PW119B, 119C, 1201999-07-29current
Rdf CorporationTop Seal Plate 55163 Rev. -Dated 8/6/97Pratt & Whitney P/N 3120495-01 Rev. DatedPratt & Whitney PW119B, 119C, 1201998-03-05current

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.