# Wsk-Pzl 6A4-165-B3 - Type: Engine model (FAA registry) - Registry code: 67226 - Manufacturer (registry): WSK-PZL - Model: 6A4-165-B3 - Engine type: Reciprocating - Power: 165 hp - Data sheet: [TCDS E-238](https://openairdocs.org/tcds/E-238) (OpenAirDocs) - Holder: Franklin Sp. z.o.o. - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/wsk-pzl-6a4-165-b3 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 96-02-04](https://openairdocs.org/ad/96-02-04): 80 Octane Avgas · Wytwornia Sprzetu Komunikacyjnego 6A4-150-B3 and 6A4-165-B3. Effective Feb 13, 1996 - [AD 63-22-03](https://openairdocs.org/ad/63-22-03): Carburetors · Continental Motors GO-300-A, GO-300-B, GO-300-C and 143 more. Effective Dec 2, 1963 - [AD 69-09-01](https://openairdocs.org/ad/69-09-01): Eisemann Magnetos · Eisemann Magnetos, 2A4-45-B2, 2A4-49-B2 and 158 more - [AD 51-15-02](https://openairdocs.org/ad/51-15-02): Crankcase · Wytwornia Sprzetu Komunikacyjnego 6A4-165-B3 ## Registered aircraft None registered with this engine model now. ## NTSB investigations None matched to aircraft with this engine model. ## FAA accident and incident reports None matched to aircraft with this engine model. ## Service difficulty reports (13) As reported by operators and repair stations, by the model named in the report. - [SDR 2017FA0000647](https://openairdocs.org/sdr/2017FA0000647), Dec 17, 2017: SKIN. CRACKED. INITIALLY I THOUGHT THAT THERE WAS A 4" LATERAL CRACK IN THE LEFT SIDE RUDDER SKIN LOCATED IN ONE OF THE UPPER SKIN PANELS. THE CRACK IN THE FINISH WAS ACTUALLY - [SDR 2017FA0000247](https://openairdocs.org/sdr/2017FA0000247), Jun 14, 2017: EXHAUST VALVE. FAILED. AFTER THE ACFT CRASHED, REMOVED COWLING AND FOUND THAT UPPER AND LOWER CRANKCASE SUSTAINED DAMAGE AT THE NR 4 CYLINDER. THE UPPER SECTION OF NR 4 CYLINDER, PIST - [SDR 2017FA0000502](https://openairdocs.org/sdr/2017FA0000502), Mar 19, 2017: THRU BOLT. SHEARED. CENTER TWO THROUGH-BOLTS ON ENGINE CRANKCASE SHEARED AND ENGINE LOST 4.5 QTS OF OIL INFLIGHT. - [SDR CA091113001](https://openairdocs.org/sdr/CA091113001), Oct 25, 2009: TUBE. CORRODED. (CAN) TUBING RUSTED OUT AFT FITTING. - [SDR 2002FA0000847](https://openairdocs.org/sdr/2002FA0000847), Jul 15, 2002: ENGINE. SHUTDOWN. ENGINE SHUT DOWN ON CLIMB OUT AT APPROX. 80 FEET, ALTITUDE. VISUAL EXAMINATION REVEALED NO OBVIOUS REASON FOR THE FAILURE. FUEL VENTING AND QUANTITY WERE COMPRO - [SDR 20000717SH010](https://openairdocs.org/sdr/20000717SH010), Jun 10, 2000: CRANKSHAFT. FAILED. ENGINE BEGAN RUNNING ROUGH AND THEN THE PROPELLER LOCKED IN THE VERTICAL POSITION. POST-INCIDENT INSPECTION OF THE ENGINE REVEALED THE CRANKSHAFT HAD FAILED. (X - [SDR AU990921](https://openairdocs.org/sdr/AU990921), Aug 1, 1999: PISTON. OUT OF LIMITS. (AUS) PISTON TO CYLINDER CLEARANCE OUT OF LIMITS. SUBMITTER SUSPECTED PISTON WAS A MADE TO ORDER ITEM. - [SDR 99ZZZX87](https://openairdocs.org/sdr/99ZZZX87), Dec 9, 1998: CRANKSHAFT. BROKEN. ENGINE LOST POWER RESULTING IN FORCED LANDING. INVESTIGATION REVEALED THE CRANKSHAFT BROKE AT THE NR 2 CONNECTING ROD JOURNAL. - [SDR CA980406003](https://openairdocs.org/sdr/CA980406003), Mar 30, 1998: CONTROL COLUMN. CORRODED. (CAN) WHILE PAINT STRIPPING THE CONTROL COLUMN A PIN HOLE APPEARED. REMOVING THE ALUMINUM PLUG, A LINE OF CORROSION WAS FOUND HALF WAY AROUND THE INSIDE OF THE - [SDR 98ZZZX313](https://openairdocs.org/sdr/98ZZZX313), Dec 2, 1997: CRANKSHAFT. CRACKED. INSPECTION FOUND CRANKSHAFT PROPELLER FLANGE CRACKED BETWEEN HOLES IN TWO PLACES. - [SDR CA970305006](https://openairdocs.org/sdr/CA970305006), Feb 4, 1997: WELD. FAILED. (CAN) THE WELD THAT HOLDS THE AXLE ATTACHMENT BUSHING TO THE LANDING GEAR LEG FAILED. REPLACED. - [SDR 96ZZZX45](https://openairdocs.org/sdr/96ZZZX45), Dec 7, 1995: CRANKSHAFT. BROKE. CRANKSHAFT BROKE AT KEYWAY WHERE STARTER GEAR MOUNTS ON SHAFT. - [SDR 95ZZZX4488](https://openairdocs.org/sdr/95ZZZX4488), Aug 1, 1995: CRANKSHAFT. BROKE. CRANKSHAFT - REGROUND 18 HOURS EARLIER. AT OVERHAUL, BROKE AT REAR THROW WITH LOSS OF POWER. GRINDING MAY HAVE BEEN THE WORK OF AN AUTOSHOP WITH NO INTEREST IN ## STCs that may be installed (OpenAirDocs) (10) 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 SE1311SO](https://openairdocs.org/stc/SE1311SO): Installation of Shivers carburetor temperature gauge with a Richter Aero Equipment B-5 carburetor temperature probe. LegacySTC.com - [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc - [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 SE4178NM](https://openairdocs.org/stc/SE4178NM): Installation of oil filter kit. Franklin Aircraft Engines Inc - [STC SE110CH](https://openairdocs.org/stc/SE110CH): Installation of Slick Model 6399 magnetos. Champion Aerospace LLC - [STC SE1696GL](https://openairdocs.org/stc/SE1696GL): Installation of nose seal retainer. Skaggs Robert G - [STC SE2127CE](https://openairdocs.org/stc/SE2127CE): Add the following approved fuel unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved. Petersen Aviation Inc - [STC SE4-1192](https://openairdocs.org/stc/SE4-1192): Adapter to permit Bendix Scintilla magneto installation, Type SF6LN-8, and modification of carburetor- manifold adapter box. Van De Water Devel Co ## PMA parts (OpenAirDocs) (187, first 50) 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 engine model on its data sheet, so check the FAA record before relying on it. Newest first. - [72-231114-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126488040520260722204349.0001): TAG-Engine. Swift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 17, 2026 - [AB-160844](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172896150720251216184414.0001): Spring & Brush Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-160844 · Nov 10, 2025 - [AB-90751-19](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191643992120251216184502.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-90751-19 · Dec 8, 2023 - [AB-357426](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184238701620251216184448.0001): Distributor Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-357426 · Dec 8, 2023 - [AB-382585](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174195818620251216184454.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382585 · Dec 8, 2023 - [AB-400623](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168816889220251216184444.0001): Ball Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental… · Dec 8, 2023 - [AB-357174](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160990699020251216184451.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357174 · Dec 8, 2023 - [AB-157160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158401184520251216184437.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-157160 · Dec 8, 2023 - [AB-157158](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158219565620251216184432.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental MotorsP/N: 10-157158 · Dec 8, 2023 - [AB-51678](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157802434020251216184508.0001): Oil Deflector. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-51678 · Dec 8, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149337649120251216184433.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 8, 2023 - [ES10-35936-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148471542220251216184429.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35936-7 · Dec 8, 2023 - [AB-382584](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126776576020251216184455.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382584 · Dec 8, 2023 - [AB-349511](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120405838820251216184440.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-349511 · Dec 8, 2023 - [AB-349326](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116200064020251216184456.0001): Fish Paper. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349326 · Dec 8, 2023 - [AB-349263](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113648021920251216184506.0001): O-Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349263 · Dec 8, 2023 - [AB-357173](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105495468820251216184452.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357173 · Dec 8, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197131308520240301172645.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168354325020240301172638.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145217999320240301172658.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118323347220240301172648.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID102475767020240301172654.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176360833820240301172648.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172762233220240301172632.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163685509620240301172639.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162371588220240301172654.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150014931220240301172641.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141585254820240301172654.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123063929720240301172657.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115495300220240301172646.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104850212020240301172638.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID102201684720240301172637.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023 - [TA2927-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143759258820231109131601.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [TA2927-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118936882120231109131600.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 31, 2023 - [ES10-400549-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158172130220230929175036.0001): 200 Series Frame, Lyc Flange. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-400549-2 · Jul 17, 2023 - [ES10-400551-8](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178086668520231025135112.0001): Housing, Distributor. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-400551-8 · Apr 1, 2023 - [ES10-25788](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197042042020230703154012.0001): Bearing, Sleeve. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-357078, 10-25788, 736 · Mar 20, 2023 - [ES10-56513](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157880742420230502200206.0001): Pin, Stop. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-56513 · Feb 9, 2023 - [ES10-357165-20](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117084116020220725141437.0001): Coil, Magneto. Kelly Aerospace Energy Systems LLC · PMA PQ4176CE · Replaces 10-357165-20, 10-357164-1 · Jun 9, 2022 - [AC-F17794](https://drs.faa.gov/browse/excelExternalWindow/914BBF6822F6710586258629005B50E0.0001): Packing, Valve Lifter Rod Tube. Airmotive Components LLC North Fabrication Shop · PMA PQ04438CE · Replaces 17794 · Nov 16, 2020 - [AC-F10246](https://drs.faa.gov/browse/excelExternalWindow/87BFEECB719B7C6F86258629005B5066.0001): Bushing, Engine Mount Rubber. Airmotive Components LLC North Fabrication Shop · PMA PQ04438CE · Replaces 10246 · Nov 16, 2020 - [AC-F17864](https://drs.faa.gov/browse/excelExternalWindow/0929AE6FDAAFB5C286258629005B50A0.0001): Packing, Valve Lifter Rod Tube. Airmotive Components LLC North Fabrication Shop · PMA PQ04438CE · Replaces 17864 · Nov 16, 2020 - [AEF17722](https://drs.faa.gov/browse/excelExternalWindow/E46204402452C762862585930032AB9F.0001): Bearing, Crankshaft Gear End, Even Cylinder Nos.. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 17722 · Jan 6, 2020 - [AEF19313](https://drs.faa.gov/browse/excelExternalWindow/E2DD2D059098B9B38625858B00324FA7.0001): Absorber, Magneto Drive. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 19313 · Jan 6, 2020 - [AEF17723](https://drs.faa.gov/browse/excelExternalWindow/E09FC2943D7A1939862585930032ABCF.0001): Bearing, Crankshaft Propeller End, Odd Cylinder Nos.. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 17723 · Jan 6, 2020 - [AEF20544](https://drs.faa.gov/browse/excelExternalWindow/E05100593CC405EC862585930032B1BC.0001): Liner, Cylinder. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 20544 · Jan 6, 2020 - [AEF18028](https://drs.faa.gov/browse/excelExternalWindow/DE1A160A39E6D506862585930032AEE3.0001): Bearing, Crankshaft, Center, Even Cylinder Nos. (.010 OS). Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 18028 · Jan 6, 2020 - [AEF18022](https://drs.faa.gov/browse/excelExternalWindow/DAF48C1A7635C2978625858B00324F75.0001): Bearing, Crankshaft Propeller End, Odd Cylinder Nos. (.010 U.S.). Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 18022 · Jan 6, 2020 - [AEF17808](https://drs.faa.gov/browse/excelExternalWindow/D5976C45FF0EBBAE862585930032AC6D.0001): Bearing, Thrust. Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 17808 · Jan 6, 2020 - [AEF18030](https://drs.faa.gov/browse/excelExternalWindow/D2E923AB1967B80B862585930032AF3C.0001): Bearing, Crankshaft, Gear End, Odd Cylinder Nos. (.010 OS). Continental Aerospace Technologies Inc · PMA PQ1269CE-D · Replaces 18030 · Jan 6, 2020 All of them: https://openairdocs.org/engine/wsk-pzl-6a4-165-b3/pma.md --- 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.