Stud
69 failure reports named the stud in the last ten years, 419 since 1995, most often on the Boeing 737; the condition most often found was "missing". 2,795 FAA approvals let 25 companies make a replacement stud, Superior Air Parts INC holding the most (2,245). The reports call it "stud", "stud assy".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 13 |
| 1996 | 28 |
| 1997 | 20 |
| 1998 | 22 |
| 1999 | 24 |
| 2000 | 29 |
| 2001 | 24 |
| 2002 | 22 |
| 2003 | 30 |
| 2004 | 26 |
| 2005 | 15 |
| 2006 | 8 |
| 2007 | 7 |
| 2008 | 8 |
| 2009 | 11 |
| 2010 | 9 |
| 2011 | 7 |
| 2012 | 9 |
| 2013 | 16 |
| 2014 | 12 |
| 2015 | 10 |
| 2016 | 7 |
| 2017 | 13 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 10 |
Which system the reports file it under last ten years
Airframe structure27Engine21Cabin, seats and restraints10Rotorcraft systems5Electrical power3Emergency equipment1Flight controls1Landing gear1
Reports by system, as a table
| reports | |
|---|---|
| Airframe structure | 27 |
| Engine | 21 |
| Cabin, seats and restraints | 10 |
| Rotorcraft systems | 5 |
| Electrical power | 3 |
| Emergency equipment | 1 |
| Flight controls | 1 |
| Landing gear | 1 |
Models most often reporting it last ten years
How it failed the condition found, last ten years
missing17broken11corroded8damaged6displaced5loose5sheared5fractured2backed out1burned1
Conditions found, as a table
| reports | |
|---|---|
| missing | 17 |
| broken | 11 |
| corroded | 8 |
| damaged | 6 |
| displaced | 5 |
| loose | 5 |
| sheared | 5 |
| fractured | 2 |
| backed out | 1 |
| burned | 1 |
Engines most often reporting it
Approved replacement parts 2,795 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a stud and sell it as an approved part for the models named. These are the companies holding such approvals for a stud:
Superior Air Parts INC 2,245Ram Aircraft Limited Partnership 103Monadnock Company 67Airmotive Engineering CORP 56Mcfarlane Aviation INC 47Pacific Sky Supply INC 36Hartzell Engine Technologies LLC 29Spirit Aerosystems INC 28Sonic Industries INC 22Seal Dynamics INC 17Gemini Engineering 14Continental Motors INC 13Airtech, Aircraft Technology CORP 13Western Sky Industries 12Lucas Aerospace Cargo System 11Erickson Incorporated DBA Erickson Air-Crane 11Continental Aerospace Technologies INC 11Valley-Todeco INC 10Denezol Tool CO INC 9Rotair Industries INC 8Hye-Tech Manufacturing LLC 8Turbine Kinetics INC, Subsidiary of Heico CORP 7Timken Alcor Aerospace Technologies INC 6Jet Avion Corporation A Heico Aerospace Company 6Extex Engineered Products INC 6
For these models most: Boeing 737 (66), Boeing 707 (64), Boeing 777 (50), Boeing 747 (45), Northrop C-125 (29), Boeing 757 (28), Boeing 767 (27), Boeing 727 (22), Mcdonnell Douglas MD-11 (20), Mcdonnell Douglas DC-10 (20), Mcdonnell Douglas DC-9 (16), Douglas DC-10 (16).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Mitchell Pma, LLC | Stud, Portability Release 62158-101MIT | 60702-102 Safran Aerosystems | Airbus SAS A318 Series, A318-112, A320 Series | 2025-12-16 | current |
| Hartzell Engine Technologies LLC | Stud, Hex 10-32 ES10-349221 | 10-349221 | Lycoming Engines O-235-C2B, O-235-E2B, O-235-F2B | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Stud, Hex 10-32 ES10-349221 | 10-349221 | Lycoming Engines TIO-540-AF1A with STC SE04445AT... | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Stud, Hex 10-32 ES10-349221 | 10-349221 | Textron Lycoming IO-720-A1A, IO-720-A1B, IO-720-B1A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Stud, Hex 10-32 ES10-349221 | 10-349221 | Continental... C90-12F, C90-12FH, C90-12FJ | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Stud 55009-1 | 352655 | Continental... IO-520-BA12B, IO-520-BA14B, IO-520-BA14M | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-4007 | 401870P007 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-5003 | 401899P003 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55013-2007 | 402127P007 | Continental... IO-360-A5B, IO-360-A6B, IO-360-A8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-4 | 401881 | Continental... IO-520BA-12B, IO-520BA-14B, 14M | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55013-1 | 401861 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-7 | 402151 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-1 | 401801 | Continental... TSIO-360E-1B, TSIO-360E-2B, TSIO-360E-3B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-5 | 401893 | Continental... LTSIO-360E-1B, LTSIO-360E-2B, LTSIO-360E-3B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-3 | 401843 | Continental... IO-360ES-26B IO-360ES-28B... | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-3 | 401834 | Continental... IO-360-ES12B, IO-360-ES20B, IO-360-ES2B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-2 | 401814 | Continental... IO-520BA-34B, 35B, IO-520BA-36B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-6003 | 401971P003 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-6 | 401971 | Continental... IO-520B- 6B, IO-520BA-2B, IO-520BA-3B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-6 | 401963 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-5007 | 401899P007 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-5 | 401899 | Continental... IO-520BA-12B, IO-520BA-14B, 14M | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-4012 | 401870P012 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55013-2 | 402127 | Continental... IO-360-A5B, IO-360-A6B, IO-360-A8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55009-6007 | 401971P007 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-4 | 401870 | Continental... IO-360C-1B, IO-360C-5B, IO-360C-6B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55013-2003 | 402127P003 | Continental... IO-360-A5B, IO-360-A6B, IO-360-A8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-4003 | 401870P003 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Stud 55012-2 | 401825 | Continental... IO-360ES-2B, IO-360ES-12B, IO-360ES-20B | 2025-09-18 | current |
| Aviatron INC. | STUD ASSEMBLY, TERMINAL AVUS2710488-2 | 2710488-2 | MHI RJ Aviation ULC CL-600-2C10, CL-600-2C11, CL-600-2D15 | 2025-08-13 | current |
| Vse Aviation Services LLC | Stud 366561 | 366561 | Lycoming Engines GSO-480-A1A6, -A1C6, -A2A6 | 2025-03-13 | current |
| Vse Aviation Services LLC | Stud P16018 | P16018 | Pratt & Whitney Division Military R-1340 Series R-1340-36, -40, -47 | 2025-03-13 | current |
| Vse Aviation Services LLC | Stud P16018 | P16018 | Pratt & Whitney Division Wasp S1H1, S1H1-G, S1H2 | 2025-03-13 | current |
| Mitchell Pma, LLC | Stud, Portability Release 62158-101MIT | 62158-101 | Airbus SAS A319 Model -112, A319 Model -114,... | 2024-12-04 | current |
| Seal Dynamics INC | Stud 130469-3SD | 130469-3 | The Boeing Company 737-900ER Series | 2024-06-27 | current |
| Aerocess, INC | Stud, Hub Mounting ACB-4071 | B-4071, | McCauley Propeller Systems 3A32C406, 3A32C418, D3A32C408 | 2024-04-23 | current |
| Aerocess, INC | Stud ACB-5077 | B-5077 | McCauley Propeller Systems B3D34C405, B3D34C413, B3D32C407 | 2024-04-23 | current |
| Hartzell Engine Technologies LLC | Stud ES3413 | 31C-19, M3413 | Lycoming Engines O-235-C1, -C1B, -C1C | 2023-12-01 | current |
| Aerocess, INC | Stud, Hub ACA-2429-4 | A-2429-4 | Hartzell Propeller Inc. (B, C, D)HC-C2Y | 2023-07-31 | current |
| Aerocess, INC | Stud ACA-2067 | A-2067 | Hartzell Propeller Inc. (D)HC-E2Y, HC-F2Y, HC-F3Y | 2023-07-31 | current |
| Seal Dynamics INC | Stud 130469-3SD | 130469-3 | The Boeing Company 737-8200 | 2023-03-17 | current |
| Kelly Aerospace Energy Systems LLC | Stud ES3413 | 31C-19, M3413 | Lycoming Engines O-235-C1, O-235-C1B, O-235-C1C | 2023-02-09 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-33 P012 | 44-33 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-28 P003 | 44-28 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-30 P003 | 44-30 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-30 P007 | 44-30 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-29 P007 | 44-29 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-36 P003 | 44-36 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-36 P012 | 44-36 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-26 P003 | 44-26 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-34 P003 | 44-34 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-35 P007 | 44-35 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-29 P012 | 44-29 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-28 P007 | 44-28 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-33 P007 | 44-33 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-31 P012 | 44-31 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-35 P003 | 44-35 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-27 P003 | 44-27 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-27 P012 | 44-27 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-31 P003 | 44-31 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-27 P007 | 44-27 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-32 P003 | 44-32 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-31 P007 | 44-31 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-33 P003 | 44-33 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-28 P012 | 44-28 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-25 P007 | 44-25 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-34 P012 | 44-34 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-35 P012 | 44-35 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-34 P007 | 44-34 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-36 P007 | 44-36 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-25 P012 | 44-25 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-26 P012 | 44-26 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-30 P012 | 44-30 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-32 P012 | 44-32 P12 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-29 P003 | 44-29 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-32 P007 | 44-32 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-26 P007 | 44-26 P07 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Superior Air Parts INC | Stud, 7/16 Dia. Fine Thread SL44-25 P003 | 44-25 P03 | Lycoming Engines O-235-F2A, O-235-F2B, O-235-J2A | 2022-12-06 | current |
| Amsafe Bridport | STUD 69B52024-1 | 69B52024-1 | BOEING 747-100 SERIES, 747-200B SERIES,... | 2022-09-27 | current |
| Aero Accessories LLC | Stud, Idler Gear AG3274-032 | Woodward 3274-032 | Aviat Aircraft S-2 where Woodward model A210692... | 2022-05-24 | current |
| Aero Accessories LLC | Stud, Idler Gear AG210031 | Woodward 210031 | Textron Aviation (Beech) 95-C55, 95-C55A, D/E55 | 2022-05-24 | current |
| Aero Accessories LLC | Stud, Idler Gear AGA-20026 | McCauley A-20026 | Textron Aviation (Cessna) 310F/G/H/K/Q/R, E310J, 421C where... | 2022-05-24 | current |
| Aero Accessories LLC | Stud, Idler Gear AG3274-038 | Woodward 3274-038 | Piper Aircraft PA-31-325, PA-31-350, PA-23-250 | 2022-05-24 | current |
| Aero Accessories LLC | Stud, Idler Gear AG34-828-7 | Garwin 34-828-7 | Textron Aviation (Cessna) 185, 185A/B/C/D/E where 34-828... | 2022-05-24 | current |
| Seal Dynamics INC | Stud 60-4910-1SD | 60-4910-1 | The Boeing Company 777-200 Series, 777-300 Series,... | 2021-10-29 | current |
| Mcfarlane Aviation INC | Stud MC6579861.38P003 | 6579861.38, 6579861.38P003 | Continental... IOF240B, IO360AB, IO360AF | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC6579861.38P007 | 6579861.38, 6579861.38P007 | Continental... IOF240B, IO360AB, IO360AF | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC3110P07 | 3110, 31-10P07 | Lycoming Engines IGO540B1A, IGO540B1C, IGSO540B1A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C10P07 | 31C10, 31C-10P07 | Lycoming Engines IO540AG1A5, IO540B1A5, IO540B1C5 | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C13P07 | 31C13, 31C-13P07, 67528 | Lycoming Engines HIO360E1AD, HIO360E1BD, HIO360F1AD | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC6579851.38P003 | 6579851.38, 6579851.38P003 | Continental... IO470VO, O470GCI, O470U | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C13P03 | 31C13, 31C-13P03, 67528 | Lycoming Engines HIO360E1AD, HIO360E1BD, HIO360F1AD | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C12P12 | 31C12, 31C-12P12, 61261, 61261 | Lycoming Engines O235C1, O235C1B, O235C1C | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C8P03 | 25C8, 25C-8P03 | Lycoming Engines TO360C1A6D, TIGO541E1A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C8P07 | 25C8, 25C-8P07 | Lycoming Engines TO360C1A6D, TIGO541E1A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC6579861.38P012 | 6579861.38, 6579861.38P012 | Continental... IOF240B, IO360AB, IO360AF | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC3112P07 | 3112, 31-12P07 | Lycoming Engines TVO435A1A, TVO435B1A, VO435A1B | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC402151P007 | 402151, 402151P007 | Continental... C1452, C1452H, C1452HP | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C8P12 | 25C8, 25C-8P12 | Lycoming Engines TO360C1A6D, TIGO541E1A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401885P003 | 401885, 401885P003 | Continental... E185, E225, E1652 | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401804P012 | 401804, 401804P012 | Continental... O470B | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401885P012 | 401885, 401885P012 | Continental... E185, E225, E1652 | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401893P003 | 401893, 401893P003 | Continental... IO470C, IO470D, IO470E | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C13P12 | 31C13, 31C-13P12, 67528 | Lycoming Engines HIO360E1AD, HIO360E1BD, HIO360F1AD | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C12P03 | 31C12, 31C-12P03, 61261, 61261 | Lycoming Engines O235C1, O235C1B, O235C1C | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC6579851.38P012 | 6579851.38, 6579851.38P012 | Continental... IO470VO, O470GCI, O470U | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401885P007 | 401885, 401885P007 | Continental... E185, E225, E1652 | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C12 | 31C12, 61261, 61261 | Lycoming Engines IO-320-E2A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C10P03 | 31C10, 31C-10P03 | Lycoming Engines IO540AG1A5, IO540B1A5, IO540B1C5 | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401893P007 | 401893, 401893P007 | Continental... IO470C, IO470D, IO470E | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC402044P003 | 402044, 402044P003 | Continental... IO360A, IO360C, IO360D | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC3112P03 | 3112, 31-12P03 | Lycoming Engines TVO435A1A, TVO435B1A, VO435A1B | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C11P03 | 25C11, 25C-11P03 | Lycoming Engines IO540AC1A5, TIO540AJ1A, TIO540W2A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C10P07 | 25C10, 25C-10P07 | Lycoming Engines TIO360C1A6D, LTIO540V2AD, TIO540V2AD | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401804P007 | 401804, 401804P007 | Continental... O470B | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401893P012 | 401893, 401893P012 | Continental... IO470C, IO470D, IO470E | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401893 | 401893 | Continental... IO470C, IO470D, IO470E | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC401804P003 | 401804, 401804P003 | Continental... O470B | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC402151P012 | 402151, 402151P012 | Continental... C1452, C1452H, C1452HP | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC402151P003 | 402151, 402151P003 | Continental... C1452, C1452H, C1452HP | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C12P07 | 31C12, 31C-12P07, 61261, 61261 | Lycoming Engines O235C1, O235C1B, O235C1C | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC3110P03 | 3110, 31-10P03 | Lycoming Engines IGO540B1A, IGO540B1C, IGSO540B1A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C11P12 | 25C11, 25C-11P12 | Lycoming Engines IO540AC1A5, TIO540AJ1A, TIO540W2A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC31C10P12 | 31C10, 31C-10P12 | Lycoming Engines IO540AG1A5, IO540B1A5, IO540B1C5 | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC3112P12 | 3112, 31-12P12 | Lycoming Engines TVO435A1A, TVO435B1A, VO435A1B | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C10P03 | 25C10, 25C-10P03 | Lycoming Engines TIO360C1A6D, LTIO540V2AD, TIO540V2AD | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC6579851.38P007 | 6579851.38, 6579851.38P007 | Continental... IO470VO, O470GCI, O470U | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC402044P007 | 402044, 402044P007 | Continental... IO360A, IO360C, IO360D | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC3110P12 | 3110, 31-10P12 | Lycoming Engines IGO540B1A, IGO540B1C, IGSO540B1A | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C10P12 | 25C10, 25C-10P12 | Lycoming Engines TIO360C1A6D, LTIO540V2AD, TIO540V2AD | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC402044P012 | 402044, 402044P012 | Continental... IO360A, IO360C, IO360D | 2021-06-10 | current |
| Mcfarlane Aviation INC | Stud MC25C11P07 | 25C11, 25C-11P07 | Lycoming Engines IO540AC1A5, TIO540AJ1A, TIO540W2A | 2021-06-10 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-39 P007 | 38-39 P07 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-42 P007 | 38-42 P07 | Lycoming Engines An... O-235-F2A, -F2B, -J2A | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-38 P012 | 38-38 P12 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-46 P007 | 38-46 P07 | Lycoming Engines An... O-235-F2A, -F2B, -J2A | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-41 P007 | 38-41 P07 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-36 P003 | 38-36 P03 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-44 P003 | 38-44 P03 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-45 P003 | 38-45 P03 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-45 P012 | 38-45 P12 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-42 P007 | 38-42 P07 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-39 P012 | 38-39 P12 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-45 P012 | 38-45 P12 | Lycoming Engines An... O-235-F2A, -F2B, -J2A | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-36 P007 | 38-36 P07 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-46 P007 | 38-46 P07 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-37 P007 | 38-37 P07 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-35 P003 | 38-35 P03 | Lycoming Engines An... O-235-F2A, -F2B, -J2A | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-46 P003 | 38-46 P03 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
| Superior Air Parts INC | Stud 3/8 Dia. Fine Thread SL38-43 P012 | 38-43 P12 | Lycoming Engines An... GO-480-C1D6, -G1A6, -G1B6 | 2021-05-18 | current |
The first 150 of 400.
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.