# PMA parts: TCDS ATC 42 Textron Lycoming A list on [TCDS ATC 42 Textron Lycoming](https://openairdocs.org/tcds/ATC%2042%20Textron%20Lycoming.md). Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this data sheet’s models, so check the FAA record before relying on it. Newest first. Page 1 of 2 · 69 PMA parts - [72-231114-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192615220520260722204355.0001): TAG-Engine · Swift Fuels, LLC · PMA PQ04423CE · Modification part · For R-680 · Jul 17, 2026 - [UREM40E](https://drs.faa.gov/browse/excelExternalWindow/8AC0F31F516C965286257760004A650B.0001): Spark Plug · Aero Accessories Inc · PMA PQ1206CE · Replaces Allied Signal (Autolite) Part No. SH… · For R-680 · Jun 10, 2010 - [URHM40E](https://drs.faa.gov/browse/excelExternalWindow/72B37F8E308940DB86257760004A6548.0001): Spark Plug · Aero Accessories Inc · PMA PQ1206CE · Replaces Allied Signal (Autolite) Part No. SH… · For R-680 · Jun 10, 2010 - [YA1923-C](https://drs.faa.gov/browse/excelExternalWindow/FFD9E119E05A4AD28625772D005C55D7.0001): Gasket - Starter Drive Housing · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1923-C · For R-680 · May 13, 2010 - [YA465-B](https://drs.faa.gov/browse/excelExternalWindow/FC1403AD764C15B38625772D005C4FCE.0001): Gasket - Cam Idler Gear Pin · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 465-B · For R-680 · May 13, 2010 - [YA852-D](https://drs.faa.gov/browse/excelExternalWindow/F482251404D37EFC8625772D005C5190.0001): Gasket - Accessory Drive Housing · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 852-D · For R-680 · May 13, 2010 - [YA231](https://drs.faa.gov/browse/excelExternalWindow/F059AF9F9F69FA168625772D005C4F1F.0001): Gasket - Distributor Mounting · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 231 · For R-680 · May 13, 2010 - [YA1076](https://drs.faa.gov/browse/excelExternalWindow/EEA957799CDD5B7E8625772D005C5213.0001): Gasket - Magneto Drive-Case · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1076 · For R-680 · May 13, 2010 - [YA1747](https://drs.faa.gov/browse/excelExternalWindow/E479274B3E222D148625772D005C544D.0001): Gasket - Exhaust Flange · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1747 · For R-680 · May 13, 2010 - [YA1396-B](https://drs.faa.gov/browse/excelExternalWindow/E1C1BAE92A11B37B8625772D005C539B.0001): Gasket - Starter Drive · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1396-B · For R-680 · May 13, 2010 - [YA1843](https://drs.faa.gov/browse/excelExternalWindow/DDBFFBEA85CCC4CF8625772D005C5525.0001): Gasket - Rocker Cover Paper · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1843 · For R-680 · May 13, 2010 - [YASTD-186](https://drs.faa.gov/browse/excelExternalWindow/DC8362D46BC0AE798625772D005C4D16.0001): Seal Tachometer Drive · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-186 · For R-680 · May 13, 2010 - [YA568](https://drs.faa.gov/browse/excelExternalWindow/D5F76D77E0D6CC078625772D005C4FFA.0001): Packing - Intake Pipe to Case · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 568 · For R-680 · May 13, 2010 - [YA238](https://drs.faa.gov/browse/excelExternalWindow/D1E035A5AEF2F8E68625772D005C4F4B.0001): Gasket - Magneto To Drive · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 238 · For R-680 · May 13, 2010 - [YA1952](https://drs.faa.gov/browse/excelExternalWindow/D146181A65577CFF8625772D005C565D.0001): Gasket - Cuno Oil Filter · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1952 · For R-680 · May 13, 2010 - [YASTD-347](https://drs.faa.gov/browse/excelExternalWindow/C95451D68632461E8625772D005C4D6E.0001): Hose Rocker Box Lube · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-347 · For R-680 · May 13, 2010 - [YA1185-B](https://drs.faa.gov/browse/excelExternalWindow/C1F2FA72E8A435E28625772D005C5344.0001): Gasket - Front Oil Sump Paper · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1185-B · For R-680 · May 13, 2010 - [YASTD-187](https://drs.faa.gov/browse/excelExternalWindow/B889FE06C526762E8625772D005C4D3F.0001): Seal Generator Drive Shaft · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-187 · For R-680 · May 13, 2010 - [YA1794-B](https://drs.faa.gov/browse/excelExternalWindow/B6EF0022D50E1FE18625772D005C54A2.0001): Gasket - Generator Drive · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1794-B · For R-680 · May 13, 2010 - [YA1183-R](https://drs.faa.gov/browse/excelExternalWindow/B3DD75864E1E00F58625772D005C5318.0001): Gasket-rear Sump Rubber · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1183-R · For R-680 · May 13, 2010 - [YA1940](https://drs.faa.gov/browse/excelExternalWindow/B326786E019A40FD8625772D005C562B.0001): Gasket - Thrust Bearing Breather · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1940 · For R-680 · May 13, 2010 - [YA690-D](https://drs.faa.gov/browse/excelExternalWindow/AE1EF60198D514B58625772D005C507D.0001): Gasket - Shroud Tube Flange Paper Type · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 690-D · For R-680 · May 13, 2010 - [YA843-B](https://drs.faa.gov/browse/excelExternalWindow/ADD0B6DD4E33A3BE8625772D005C5100.0001): Gasket-Oil Pump · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 843-B · For R-680 · May 13, 2010 - [YA1027-B](https://drs.faa.gov/browse/excelExternalWindow/A9532E0D12F11A738625772D005C5600.0001): Gasket - Fuel Drive Mount · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1027-B · For R-680 · May 13, 2010 - [YA573-C](https://drs.faa.gov/browse/excelExternalWindow/A7986B1AA13370B88625772D005C5025.0001): Gasket - Oil Strainer Nut · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 573-C · For R-680 · May 13, 2010 - [YASTD-388](https://drs.faa.gov/browse/excelExternalWindow/A6CC11AE823883F98625772D005C4D98.0001): Hose Rocker Box Lube · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-388 · For R-680 · May 13, 2010 - [YA1077-B](https://drs.faa.gov/browse/excelExternalWindow/A3F793016D3CC3018625772D005C523D.0001): Gasket - Thrust Bearing Cap · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1077-B · For R-680 · May 13, 2010 - [YA1794](https://drs.faa.gov/browse/excelExternalWindow/A3915C193A2803DB8625772D005C5476.0001): Gasket - Fuel Drive Cover · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1794 · For R-680 · May 13, 2010 - [YA1045-C](https://drs.faa.gov/browse/excelExternalWindow/9D58EF416BF601358625772D005C51E6.0001): Gasket - Crankcase Breather · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces YA1045-C · For R-680 · May 13, 2010 - [YA680-AA](https://drs.faa.gov/browse/excelExternalWindow/99DF7ACC283E774D8625772D005C5051.0001): Gasket-Bolt Crankpin Oil Seal · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 680-AA · For R-680 · May 13, 2010 - [YASTD-389](https://drs.faa.gov/browse/excelExternalWindow/918CAFD8E26A004B8625772D005C4DC1.0001): Hose Rocker Box Lube · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-389 · For R-680 · May 13, 2010 - [YA1169-B](https://drs.faa.gov/browse/excelExternalWindow/7EA7E32F39C412688625772D005C52C0.0001): Gasket - Accessory Case Breather · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1169-B · For R-680 · May 13, 2010 - [YA690-R](https://drs.faa.gov/browse/excelExternalWindow/7A3C128835BAEF138625772D005C50A9.0001): Gasket - Shroud Tube Flange Rubber Type · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 690-R · For R-680 · May 13, 2010 - [YA1185-R](https://drs.faa.gov/browse/excelExternalWindow/72DF3DB9D56523688625772D005C536F.0001): Gasket - Front Oil Sump Rubber · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1185-R · For R-680 · May 13, 2010 - [YA8313](https://drs.faa.gov/browse/excelExternalWindow/6B7F23FB7D8E03218625772D005C5685.0001): Gasket - Vacuum Pump Cover · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 8313 · For R-680 · May 13, 2010 - [YASTD-548](https://drs.faa.gov/browse/excelExternalWindow/6AE3BC687469C3328625772D005C4E44.0001): Seal Vacuum Pump Drive · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-548 · For R-680 · May 13, 2010 - [YA1883-B](https://drs.faa.gov/browse/excelExternalWindow/6791F5FAD5CFE2188625772D005C557C.0001): Gasket - Distributor Shaft Packing Retainer · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1883-B · For R-680 · May 13, 2010 - [YA159](https://drs.faa.gov/browse/excelExternalWindow/5CFA2482E00E1E908625772D005C4E9D.0001): Gasket - Governor Mount Plate · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 159 · For R-680 · May 13, 2010 - [YA404B](https://drs.faa.gov/browse/excelExternalWindow/542FCF2ED1F628DF8625772D005C4F76.0001): Gasket - Intake to Cylinder · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 404B · For R-680 · May 13, 2010 - [YA1503-B](https://drs.faa.gov/browse/excelExternalWindow/4B3A0A46E5A04DBD8625772D005C53C7.0001): Gasket - Air Box to Carburetor · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1503-B · For R-680 · May 13, 2010 - [YA1183-B](https://drs.faa.gov/browse/excelExternalWindow/40069540C7BC08018625772D005C52EC.0001): Gasket - Rear Oil Sump Paper · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1183-B · For R-680 · May 13, 2010 - [YA1699-C](https://drs.faa.gov/browse/excelExternalWindow/2F45165D746409A28625772D005C5420.0001): Gasket - Vacuum Pump Mount · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1699-C · For R-680 · May 13, 2010 - [YA848-B](https://drs.faa.gov/browse/excelExternalWindow/2E79BA80D65154C28625772D005C5130.0001): Gasket - Carburetor Mount · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 848-B · For R-680 · May 13, 2010 - [YA1027-C](https://drs.faa.gov/browse/excelExternalWindow/26CBB3362937159A8625772D005C51BA.0001): Gasket - Generator Mount · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1027-C · For R-680 · May 13, 2010 - [YA849-C](https://drs.faa.gov/browse/excelExternalWindow/229C7D063A46503E8625772D005C5158.0001): Gasket-Oil Relief Valve · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 849-C · For R-680 · May 13, 2010 - [YASTD-499](https://drs.faa.gov/browse/excelExternalWindow/1F715E1F8E2F8C178625772D005C4E18.0001): Cylinder Base Packing · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-499 · For R-680 · May 13, 2010 - [YASTD-346](https://drs.faa.gov/browse/excelExternalWindow/1E76446A384116D38625772D005C4DED.0001): Rocker Oil Shaft Seal · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces STD-346 · For R-680 · May 13, 2010 - [YA1843-R](https://drs.faa.gov/browse/excelExternalWindow/1E67FC582D50117E8625772D005C54FB.0001): Gasket - Rocker Cover Rubber · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1843 · For R-680 · May 13, 2010 - [YA1691-C](https://drs.faa.gov/browse/excelExternalWindow/1AAAE62531434CC78625772D005C53F3.0001): Gasket - Fuel Pump Mount · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1691-C · For R-680 · May 13, 2010 - [YA1111-C](https://drs.faa.gov/browse/excelExternalWindow/18E2EA7396BDF11C8625772D005C5269.0001): Packing- Push Rod Tube · Yesteryear Aviation Inc · PMA PQ4039CE · Replaces 1111-C · For R-680 · May 13, 2010 Next page: https://openairdocs.org/tcds/ATC%2042%20Textron%20Lycoming/pma.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet' WHERE tcds_number = 'ATC 42 Textron Lycoming' ORDER BY supplement_date DESC, drs_guid DESC ``` This list as a web page: https://openairdocs.org/tcds/ATC%2042%20Textron%20Lycoming/pma --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.