# Continental C90-8F

- Type: Engine model (FAA registry)
- Registry code: 17181
- Manufacturer (registry): CONT MOTOR
- Model: C90-8F
- Engine type: Reciprocating
- Power: 95 hp
- Data sheet: [TCDS E-252](https://openairdocs.org/tcds/E-252) (OpenAirDocs)
- Holder: Continental Aerospace Technologies, Inc.
- Installed in: 30 registered aircraft
- Page: https://openairdocs.org/engine/continental-c90-8f

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012
- [AD 98-17-11](https://openairdocs.org/ad/98-17-11): Crankshafts · Continental Motors A-65-3, A-65-8, A75-8 and 90 more. Effective Oct 19, 1998
- [AD 98-01-06](https://openairdocs.org/ad/98-01-06): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 184 more. Effective Feb 13, 1998
- [AD 94-05-05 R1](https://openairdocs.org/ad/94-05-05-R1): Cylinder Rocker · Continental Motors C-125-1, C-125-2, C145-2 and 59 more. Effective Feb 13, 1996
- [AD 93-22-05](https://openairdocs.org/ad/93-22-05): Carburetor Air Intake Housing Assemblies · Continental Motors C90-12F, C90-12FH, C90-12FJ and 22 more. Effective Dec 14, 1993
- [AD 93-19-04](https://openairdocs.org/ad/93-19-04): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 184 more. Effective Oct 18, 1993
- [AD 81-16-05](https://openairdocs.org/ad/81-16-05): Magnetos · Lycoming Engines AEIO-320-E1B, AEIO-320-E2B, AEIO-360-B1G6 and 234 more. Effective Aug 6, 1981
- [AD 81-07-06](https://openairdocs.org/ad/81-07-06): AC Fuel Pumps · Continental Motors A-65-1, A-65-12, A-65-12F and 60 more. Effective Apr 1, 1981
- [AD 80-06-05](https://openairdocs.org/ad/80-06-05): Magnetos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 254 more. Effective Mar 28, 1980
- [AD 69-24-03](https://openairdocs.org/ad/69-24-03): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 321 more. Effective Nov 29, 1969
- [AD 49-50-01](https://openairdocs.org/ad/49-50-01): Generator Drive Coupling Rubber Disc · Continental Motors C-125-1, C-125-2, C145-2 and 27 more

## Information bulletins (advisory) (3)

- [SAIB NE-18-27](https://openairdocs.org/saib/NE-18-27): POWERPLANT  Rocker Shaft Boss Inspection. Issued Sep 10, 2018
- [SAIB NE-16-13](https://openairdocs.org/saib/NE-16-13): Powerplant - Prohibited use of sealant. Issued Mar 8, 2016
- [SAIB NE-13-04](https://openairdocs.org/saib/NE-13-04): Continental Motors, Inc. (CMI) Connecting Rod Piston Pin Bushing Inspection. Issued Oct 31, 2012

## Registered aircraft (30)

- [N1582E](https://openairdocs.org/aircraft/N1582E): [Dittlinger Bret W](https://openairdocs.org/faa-owner/DITTLINGER%20BRET%20W), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1947, S/N 7AC-5146
- [N1853D](https://openairdocs.org/aircraft/N1853D): [Bent James L Jr DBA](https://openairdocs.org/faa-owner/BENT%20JAMES%20L%20JR%20DBA), [Palatine Bridge, NY](https://openairdocs.org/faa-place/NY/Palatine%20Bridge), S/N 18-53
- [N220Y](https://openairdocs.org/aircraft/N220Y): [Clarke Mackenzie A](https://openairdocs.org/faa-owner/CLARKE%20MACKENZIE%20A), [Lompoc, CA](https://openairdocs.org/faa-place/CA/Lompoc), built 1999, S/N 1
- [N25VS](https://openairdocs.org/aircraft/N25VS): [Cacolici Dominic](https://openairdocs.org/faa-owner/CACOLICI%20DOMINIC), [Saint Petersburg, FL](https://openairdocs.org/faa-place/FL/Saint%20Petersburg), built 1974, S/N 79
- [N2755E](https://openairdocs.org/aircraft/N2755E): [Stephenson Gary E](https://openairdocs.org/faa-owner/STEPHENSON%20GARY%20E), [Philip, SD](https://openairdocs.org/faa-place/SD/Philip), built 1946, S/N 7AC-6336
- [N28171](https://openairdocs.org/aircraft/N28171): [Wjm Aviation LLC](https://openairdocs.org/faa-owner/WJM%20AVIATION%20LLC), [Friendswood, TX](https://openairdocs.org/faa-place/TX/Friendswood), built 1940, S/N 4631
- [N30256](https://openairdocs.org/aircraft/N30256): [Frickel Richard L](https://openairdocs.org/faa-owner/FRICKEL%20RICHARD%20L), [Bristow, NE](https://openairdocs.org/faa-place/NE/Bristow), built 1940, S/N 4731
- [N308ED](https://openairdocs.org/aircraft/N308ED): [Stevens Mike](https://openairdocs.org/faa-owner/STEVENS%20MIKE), [Duluth, MN](https://openairdocs.org/faa-place/MN/Duluth), built 1946, S/N 7AC2952
- [N315DS](https://openairdocs.org/aircraft/N315DS): [Mundahl Doug D](https://openairdocs.org/faa-owner/MUNDAHL%20DOUG%20D), [Rugby, ND](https://openairdocs.org/faa-place/ND/Rugby), built 2008, S/N 2007-1
- [N367DS](https://openairdocs.org/aircraft/N367DS): [Petersen Gary Trustee](https://openairdocs.org/faa-owner/PETERSEN%20GARY%20TRUSTEE), [Walton, NE](https://openairdocs.org/faa-place/NE/Walton), built 1946, S/N 7AC-1331
- [N37361](https://openairdocs.org/aircraft/N37361): [Pietsch Kent D](https://openairdocs.org/faa-owner/PIETSCH%20KENT%20D), [Burlington, ND](https://openairdocs.org/faa-place/ND/Burlington), built 1941, S/N 204
- [N37428](https://openairdocs.org/aircraft/N37428): [Pietsch Kent D](https://openairdocs.org/faa-owner/PIETSCH%20KENT%20D), [Burlington, ND](https://openairdocs.org/faa-place/ND/Burlington), built 1942, S/N 273
- [N38272](https://openairdocs.org/aircraft/N38272): [Wright Attitudes Inc](https://openairdocs.org/faa-owner/WRIGHT%20ATTITUDES%20INC), [Taft, TN](https://openairdocs.org/faa-place/TN/Taft), built 1941, S/N 6898
- [N382K](https://openairdocs.org/aircraft/N382K): [Oversquare LLC](https://openairdocs.org/faa-owner/OVERSQUARE%20LLC), [Norman, OK](https://openairdocs.org/faa-place/OK/Norman), S/N 101
- [N4484H](https://openairdocs.org/aircraft/N4484H): [Gubert Kurt](https://openairdocs.org/faa-owner/GUBERT%20KURT), [Ashley, MI](https://openairdocs.org/faa-place/MI/Ashley), built 2014, S/N 1860
- [N4818M](https://openairdocs.org/aircraft/N4818M): [Wolery Chet](https://openairdocs.org/faa-owner/WOLERY%20CHET), [Chester, MT](https://openairdocs.org/faa-place/MT/Chester), built 1947, S/N 11-329
- [N5081H](https://openairdocs.org/aircraft/N5081H): [Thomas Douten D](https://openairdocs.org/faa-owner/THOMAS%20DOUTEN%20D), [Roxbury, ME](https://openairdocs.org/faa-place/ME/Roxbury), built 1948, S/N 11-688
- [N5082H](https://openairdocs.org/aircraft/N5082H): [Ian Lussier Inc](https://openairdocs.org/faa-owner/IAN%20LUSSIER%20INC), [Owls Head, ME](https://openairdocs.org/faa-place/ME/Owls%20Head), built 1949, S/N 11-981
- [N555PK](https://openairdocs.org/aircraft/N555PK): [Oneal Benjamin A](https://openairdocs.org/faa-owner/ONEAL%20BENJAMIN%20A), [Saint Cloud, FL](https://openairdocs.org/faa-place/FL/Saint%20Cloud), built 1946, S/N 20662
- [N654JS](https://openairdocs.org/aircraft/N654JS): [Sass James Louis Jr](https://openairdocs.org/faa-owner/SASS%20JAMES%20LOUIS%20JR), [Abilene, TX](https://openairdocs.org/faa-place/TX/Abilene), built 1948, S/N 7CCM-76
- [N6733C](https://openairdocs.org/aircraft/N6733C): [Berry Michael C](https://openairdocs.org/faa-owner/BERRY%20MICHAEL%20C), [Stanfield, AZ](https://openairdocs.org/faa-place/AZ/Stanfield), built 1957, S/N 111
- [N745JE](https://openairdocs.org/aircraft/N745JE): [Emmons John K](https://openairdocs.org/faa-owner/EMMONS%20JOHN%20K), [Corona, CA](https://openairdocs.org/faa-place/CA/Corona), built 1944, S/N 12492
- [N801TF](https://openairdocs.org/aircraft/N801TF): [Lundquist Larry E](https://openairdocs.org/faa-owner/LUNDQUIST%20LARRY%20E), [De Smet, SD](https://openairdocs.org/faa-place/SD/De%20Smet), built 2010, S/N 1005
- [N83426](https://openairdocs.org/aircraft/N83426): [Smokovitz Joseph M](https://openairdocs.org/faa-owner/SMOKOVITZ%20JOSEPH%20M), [Tecumseh, MI](https://openairdocs.org/faa-place/MI/Tecumseh), S/N 7AC-2093
- [N85HS](https://openairdocs.org/aircraft/N85HS): [Steilacoom, WA](https://openairdocs.org/faa-place/WA/Steilacoom), built 2014, S/N 1, Registration pending
- [N86506](https://openairdocs.org/aircraft/N86506): [Harker James P](https://openairdocs.org/faa-owner/HARKER%20JAMES%20P), [Forest Lake, MN](https://openairdocs.org/faa-place/MN/Forest%20Lake), built 1944, S/N 12076
- [N88159](https://openairdocs.org/aircraft/N88159): [Finney Michael E Trustee](https://openairdocs.org/faa-owner/FINNEY%20MICHAEL%20E%20TRUSTEE), [Albany, IN](https://openairdocs.org/faa-place/IN/Albany), built 2010, S/N MEF-2
- [N94597](https://openairdocs.org/aircraft/N94597): [Tebbe Francis L](https://openairdocs.org/faa-owner/TEBBE%20FRANCIS%20L), [Maryville, IL](https://openairdocs.org/faa-place/IL/Maryville), built 1946, S/N 19712
- [N969DJ](https://openairdocs.org/aircraft/N969DJ): [Johnson David C](https://openairdocs.org/faa-owner/JOHNSON%20DAVID%20C), [Raleigh, NC](https://openairdocs.org/faa-place/NC/Raleigh), built 2006, S/N 002
- [N9800D](https://openairdocs.org/aircraft/N9800D): [Hallada David A](https://openairdocs.org/faa-owner/HALLADA%20DAVID%20A), [Stanton, MI](https://openairdocs.org/faa-place/MI/Stanton), built 1947, S/N 11-261

## NTSB investigations (6)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN23FA248](https://openairdocs.org/ntsb/CEN23FA248), Jun 21, 2023: Aeronca 7CCM (N308ED), Duluth, MN, substantial damage, 2 fatal. Probable cause: The pilot’s exceedance of the airplane’s critical angle of attack and failure to maintain adequate airspeed, which resulted in an aerodynamic stall and loss of control.
- [NTSB GAA18CA158](https://openairdocs.org/ntsb/GAA18CA158), Mar 11, 2018: Johnson Gerald CR-1 (N142DT), Altamont, NY, substantial damage. Probable cause: The pilot’s failure to maintain the runway heading during the approach in gusting crosswind conditions.
- [NTSB ATL04LA006](https://openairdocs.org/ntsb/ATL04LA006), Oct 4, 2003: Piper J-3 -C65 (N38272), Jackson, TN, substantial damage. Probable cause: The pilot's improper us of flight controls during an attempted takeoff, which resulted in an collision with the specially equipped automobile.
- [NTSB MIA99LA131](https://openairdocs.org/ntsb/MIA99LA131), Apr 17, 1999: Piper J-3C (N38272), Jackson, MS, no damage, 1 fatal. Probable cause: The failure of the airshow aerial performer to maintain a grip on the airplane's externally mounted rope ladder for unknown reasons and his failure to install and use a safety line resulting in his…
- [NTSB BFO91LA051](https://openairdocs.org/ntsb/BFO91LA051), May 26, 1991: Piper J3C 65 (N38272), Quinton, VA, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN ADEQUATE CLEARANCE FROM A MOVING AIRCRAFT.
- [NTSB DEN80DTK22](https://openairdocs.org/ntsb/DEN80DTK22), Sep 14, 1980: Piper PA-11 (N4818M), Olsonville, SD, substantial damage

## FAA accident and incident reports (12)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20240105000609I](https://openairdocs.org/incident/20240105000609I), Jan 5, 2024: Aeronca 7AC (N83426), Maybee, MI, Minor damage. The pilot was attempting to land on a private grass Airstrip that was approximately 2000 feet long. The pilot stated that on approach, he realized that he was…
- [Accident 20230621009219A](https://openairdocs.org/incident/20230621009219A), Jun 21, 2023: Aeronca 7CCM (N308ED), Duluth, MN, Substantial damage, 2 fatal. During first flight after annual inspection PIC and co-worker departed Duluth international airport (kdlh) and flew to property owned by PIC. Data recovered…
- [Incident 20180324010059I](https://openairdocs.org/incident/20180324010059I), Mar 24, 2018: Interstate S-1A (N37428), Lancaster, CA, Minor damage. During the airshow performance, the pilot was attempting to perform a stunt that involved landing on a platform on top of a moving truck. During gusty wind…
- [Accident 20180311001919A](https://openairdocs.org/incident/20180311001919A), Mar 11, 2018: Johnson Gerald CR-1 (N142DT), Altamont, NY, Destroyed. On 03/11/2018, N142DT attempted landing on private airstrip. Aircraft turned approximately 90 degrees from runway and contacted trees with left wing which…
- [Incident 20080929849509I](https://openairdocs.org/incident/20080929849509I), Sep 29, 2008: Champi 7AC (N2755E), Spearfish, SD, Minor damage. (-23) This incident occurred on 09-29-08 about 1000 MDT at Spearfish municipal airport, Spearfish, SD. During landing attempt pilot made a hard landing on…
- [Accident 20031005031129A](https://openairdocs.org/incident/20031005031129A), Oct 5, 2003: Piper J3C65 (N38272), Jackson, TN, Substantial damage. (-23) The aircraft was involved in an accident during an airshow performance of a car top take off and landing routine. The pilot stated that after performing…
- [Incident 20030823023869I](https://openairdocs.org/incident/20030823023869I), Aug 23, 2003: Arctic S1A65F (N37428), Valparaiso, IN, Minor damage. (-23) During an airshow performance at vpz aircraft was to do a simulated single wheel touch down after completing a diving maneuver. The left main wheel…
- [Accident 19990417019629A](https://openairdocs.org/incident/19990417019629A), Apr 17, 1999: Piper J3C65 (N38272), Jackson, MS, 1 fatal. On April 17, 1999, about 1045 central daylight time, a Piper J3C, N38272, registered to a private individual, operating as a 14 CFR part 91 airshow flight,…
- [Incident 19930129004069I](https://openairdocs.org/incident/19930129004069I), Jan 29, 1993: Bbavia 7CCM (N83426), Bucksport, ME, Minor damage. On landing rollout aircraft veered left and struck a snowbank. Found tail wheel spring had broke.
- [Accident 19910526063221A](https://openairdocs.org/incident/19910526063221A), May 26, 1991: Piper J3C65 (N38272), Quinton, VA, Substantial damage. Taxied into tail of homebuilt N949Z also taxiing for takeoff.
- [Incident 19850719049329I](https://openairdocs.org/incident/19850719049329I), Jul 19, 1985: Bbavia 7CCM (N83426), Old Town, ME, Minor damage. Landed short of runway and lost control of aircraft.
- [Accident 19800914041549A](https://openairdocs.org/incident/19800914041549A), Sep 14, 1980: Piper PA11 (N4818M), Olsonville, SD, Substantial damage. Aircraft struck truck on final approach.

## Service difficulty reports (4)

As reported by operators and repair stations, by the model named in the report.

- [SDR CA131028002](https://openairdocs.org/sdr/CA131028002), Oct 4, 2013: STRUT. BROKEN. (CAN) BROKEN OFF UNDER THE SHOCK CORDS ALLOWING THE WHEEL LT LANDING GEAR TO ROTATE INWARD AGAINST THE BELLY OF AIRPLANE. LOWER SHOCK STRUT, SHORT, APPEARS TO S
- [SDR 2008FA0000908](https://openairdocs.org/sdr/2008FA0000908), Aug 10, 2008: CONNECTING ROD. FAILED. NR 1 CONNECTING ROD FAILED IN FLT, OFF-AIRPORT LANDING AND SUBSTANTIAL DAMAGE. CONNECTING ROD FAILED SLIGHTLY ABOVE CRANKSHAFT; ROD CAP STILL BOLTED & SAFETIED 
- [SDR 20000911SH041](https://openairdocs.org/sdr/20000911SH041), Aug 28, 2000: GEAR. FRACTURED. AIRCRAFT MADE AN EMERGENCY LANDING FOLLOWING SUDDEN ENGINE FAILURE DURING CRUISE FLIGHT. UPON INSPECTION, THE CRANKSHAFT GEAR HAD 5 OR 6 TEETH MISSING AND THE R
- [SDR 20000713SH010](https://openairdocs.org/sdr/20000713SH010), Feb 22, 2000: CASTING. LEAKING. DURING ANNUAL INSPECTION, OIL WAS FOUND LEAKING NEAR BOTTOM OF ROCKER COVERS. THE LEAK WAS TRACKED TO THE CASTING LINE BETWEEN THE VALVE GUIDES IN THE FIN AREA.

## STCs that may be installed (OpenAirDocs) (40)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC
- [STC SE2932SW](https://openairdocs.org/stc/SE2932SW): Install carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive. Alcor LLC
- [STC SE208SO](https://openairdocs.org/stc/SE208SO): Installation of ice indicator in the carburetor. LegacySTC.com. Lists C90 Series
- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd
- [STC SE03232CH](https://openairdocs.org/stc/SE03232CH): Installation of Engine Preheat Kit p/n TA2925-1 for 115 volt application. Hartzell Propeller Inc
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc
- [STC SE00533SE](https://openairdocs.org/stc/SE00533SE): Installation of Real Gasket Corporation Continental Engine Pushrod Tube Modification. Real Gaskets Tennessee
- [STC SE7559SW](https://openairdocs.org/stc/SE7559SW): Install adapter to permit use of a spin-on oil filter. Stratus Tool Technologies LLC
- [STC SE10129SC](https://openairdocs.org/stc/SE10129SC): Installation of rotocoil, valve springs, ni-resist valve guide, exhaust valve with chrome flash on stem, and rocker shaft with thrust buttons. Continental Motors, Inc
- [STC SE34WE](https://openairdocs.org/stc/SE34WE): Installation of Electro-Coatings, Inc., piston rings on Continental pistons. Continental Motors, Inc
- [STC SE4247SW](https://openairdocs.org/stc/SE4247SW): Regrind crankshaft to .020 undersize on crankpin and main journals. Continental Motors, Inc. Lists C90 Series
- [STC SE8109SW](https://openairdocs.org/stc/SE8109SW): Installation of any or all parts identified by Drawing/Parts Application List AEC9109-2. Continental Motors, Inc. Lists C90 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists C90 Series
- [STC SE7562SW](https://openairdocs.org/stc/SE7562SW): Install adapter to permit use of a spin-on oil filter. Stratus Tool Technologies LLC
- [STC SE3330NM](https://openairdocs.org/stc/SE3330NM): Continental valve cover gasket. Real Gaskets Tennessee
- [STC SE1591GL](https://openairdocs.org/stc/SE1591GL): Installation of Slick Aircraft Products Magneto Model 4202 or installation of Model 4302. Champion Aerospace LLC
- [STC SE09002SC](https://openairdocs.org/stc/SE09002SC): Regrind Teledyne Continental crankshafts, to .020-inch undersize on crankpin and main journals. Aircraft Specialties Services Inc. Lists C90 Series
- [STC SE1780NM](https://openairdocs.org/stc/SE1780NM): Installation of Precise Flight standby vacuum system (SVS III). Precise Flight Inc
- [STC SE01943CH](https://openairdocs.org/stc/SE01943CH): Add the following approved fuels: unleaded automotive gasoline 87 minimum antiknock index, per ASTM Specification D-439 or D-4814 of any volatility class, A through E, or 82UL AVGAS per ASTM D-6227. Experimental Aircraft Association Inc
- [STC SE634GL](https://openairdocs.org/stc/SE634GL): Superseded by STC SE01943CH. Add the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index. EAA Aviation Foundation. Lists C90 Series
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation
- [STC ST00435AT](https://openairdocs.org/stc/ST00435AT): Overhaul/repair of the Delco starter adapter drive (P/N 1971890) used with Delco starters P/N's 11096656 and 1109660. Aerotech. Lists C90 Series
- [STC SE02172AT](https://openairdocs.org/stc/SE02172AT): Replace engine crankcase with model O-200 crankcase. Swords Don. Lists C90 Series
- [STC SE09513SC](https://openairdocs.org/stc/SE09513SC): Installation and usage of Exxon 20W50 Multigrade aircraft engine oil conforming to Exxon Oil Formulation WS-3013. Exxon Company USA. Lists C90 Series
- [STC SE1-201](https://openairdocs.org/stc/SE1-201): Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D)). MidContinent Instru Co Inc. Lists C90 Series
- [STC SE00164SE](https://openairdocs.org/stc/SE00164SE): Installation of Avglas components to modify carburetor air housing assemblies. McFarlane Aviation, Inc. Lists C90 Series
- [STC SE01592AT](https://openairdocs.org/stc/SE01592AT): Modify the crankcase of the listed engines. Swords Don. Lists C90 Series
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation
- [STC SE00262NY](https://openairdocs.org/stc/SE00262NY): Installation of Canadian Aero Manufacturing Pull Start Clutch, P/N 1971890-N or 1971890-M. Canadian Aero Manufacturing. Lists C90 Series
- [STC SE154CE](https://openairdocs.org/stc/SE154CE): Engine oil pump repair/rework specifications and procedures. Allison James R. Lists C90 Series
- [STC SE8669SW](https://openairdocs.org/stc/SE8669SW): Installation of roller rocker arm. Performance Engineering
- [STC SE2734CE](https://openairdocs.org/stc/SE2734CE): Continental P/N 530182, crankshaft is being replaced with crankshaft P/N AS530182 obtained by modification of Continental PC-60(Packette) engine crankshaft. Air Sports Inc
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists C90 Series
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co. Lists C90 Series
- [STC SE1976SW](https://openairdocs.org/stc/SE1976SW): Manufacture of new cylinder barrels and rebarreling with original cylinder head. Gary Aerospace Corp. Lists C90 Series
- [STC SE2031CE](https://openairdocs.org/stc/SE2031CE): Add the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index and leaded autmotive gasoline, 88 minimum antiknock index(RON+MON)/2. Intermixing with aviation gasoline also approved. Petersen Aviation Inc
- [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. Bel-Ray Company, Inc. Lists C90 Series
- [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists C90 Series
- [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines. Kling Oil Company. Lists C90 Series

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