# Lycoming IGSO-480-A1E6

- Type: Engine model (FAA registry)
- Registry code: 42221
- Manufacturer (registry): LYCOMING
- Model: IGSO-480-A1E6
- Engine type: Reciprocating
- Power: 340 hp
- Data sheet: [TCDS E-284](https://openairdocs.org/tcds/E-284) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 1 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-igso-480-a1e6

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 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004
- [AD 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997
- [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992
- [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991
- [AD 81-03-05](https://openairdocs.org/ad/81-03-05): Mixture Control Shaft Assembly · Lycoming Engines IGO-540-A1A, IGO-540-B1A, IGO-540-B1C and 9 more. Effective Feb 11, 1981
- [AD 79-04-05](https://openairdocs.org/ad/79-04-05): Regulator Diaphragm Stem Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 215 more. Effective Sep 26, 1979
- [AD 78-23-10](https://openairdocs.org/ad/78-23-10): Center Body Bellows Seal Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 218 more. Effective Nov 7, 1978
- [AD 73-23-01](https://openairdocs.org/ad/73-23-01): Piston Pin Assembly · Lycoming Engines AIO-360-A1A, AIO-360-A1B, AIO-360-A2A and 215 more. Effective Jan 13, 1977
- [AD 69-25-08](https://openairdocs.org/ad/69-25-08): Reduction Gear Assemblies · Lycoming Engines GO-435-C2A, GO-435-C2A2, GO-480-A1A and 61 more. Effective Feb 19, 1970
- [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969

## Information bulletins (advisory) (2)

- [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014

## Registered aircraft (1)

- [N66GM](https://openairdocs.org/aircraft/N66GM): [Edge Logistics Inc](https://openairdocs.org/faa-owner/EDGE%20LOGISTICS%20INC), [Southlake, TX](https://openairdocs.org/faa-place/TX/Southlake), built 1969, S/N LB-1

## 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 (4)

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

- [SDR CA040329004](https://openairdocs.org/sdr/CA040329004), Mar 16, 2004: GOVERNOR. RUPTURED. (CAN) THE OIL LEAK WAS TRACED TO THE PROP GOVERNOR AND ONLY SHOWED UP AT APPROXIMATELY 2500 RPM. A PIECE OF GASKET .1250 INCH WIDE WAS FOUND MISSING FROM THE GA
- [SDR AU000488](https://openairdocs.org/sdr/AU000488), Jun 16, 2000: MOTOR. FAILED. (AUS) LANDING GEAR MOTOR DRIVESHAFT AND GEAR TEETH STRIPPED.
- [SDR CA990818005](https://openairdocs.org/sdr/CA990818005), Jul 24, 1999: CONNECTING ROD. BROKEN. (CAN) ENGINE FAILED, NR 5 CYLINDER CONNECTING ROD BROKEN.
- [SDR AU960278](https://openairdocs.org/sdr/AU960278), Feb 6, 1996: FUEL TANK. LEAKING. (AUS) LH WING INBOARD FUEL TANK DETERIORATED AND LEAKING - THE TANK WAS REMOVED AND FOUND TO BE SEALED EXTERNALLY IN NUMEROUS PLACES WITHPR1422 COMPOUND - 2 BUT

## STCs that may be installed (OpenAirDocs) (15)

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 SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company
- [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 SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists IGSO-480 Series
- [STC SE1188GL](https://openairdocs.org/stc/SE1188GL): Installation of a Shadin Company fuel flow transducer. Shadin Avionics
- [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. Exxon Company USA. Lists IGSO-480 Series
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists IGSO-480 Series
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists IGSO-480 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 IGSO-480 Series
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists IGSO-480 Series
- [STC SE58WE](https://openairdocs.org/stc/SE58WE): SERIAL NUMBERS L1090-33 and L1423-44 ONLY: Installation of a modified induction system. Gibbs Flying Service Inc
- [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 IGSO-480 Series

## PMA parts (OpenAirDocs) (757, 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.

- [AB-160844](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100141747720251216184413.0001): Spring & Brush Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-160844 · Nov 10, 2025
- [OC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178549155320250923184433.0001): Oil Cooler Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Sep 12, 2025
- [SL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151538433320250923185921.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [TXPL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146504457020250923185923.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [HSS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104096221220250923185925.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [AB-382585](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195988018720251216184453.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382585 · Dec 8, 2023
- [AB-157160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193485923720251216184437.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-157160 · Dec 8, 2023
- [AB-400623](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193069304920251216184444.0001): Ball Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental… · Dec 8, 2023
- [AB-51678](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192819677720251216184507.0001): Oil Deflector. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-51678 · Dec 8, 2023
- [ES10-35936-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191691087420251216184428.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35936-7 · Dec 8, 2023
- [AB-357586](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182632077520251216184446.0001): Gear. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-357586 · Dec 8, 2023
- [ES10-35935-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180932652920251216184430.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35935-6 · Dec 8, 2023
- [AB-50765](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176916822920251216184507.0001): Clamp. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-50765 · Dec 8, 2023
- [AB-606505](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175976763420251216184439.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-606505 · Dec 8, 2023
- [AB-157158](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173837306320251216184432.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental MotorsP/N: 10-157158 · Dec 8, 2023
- [AB-92815-37](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165115893520251216184504.0001): Retaining Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-92815-37 · Dec 8, 2023
- [AB-382584](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164325700920251216184454.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382584 · Dec 8, 2023
- [AB-357173](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163626963020251216184452.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357173 · Dec 8, 2023
- [AB-349263](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161733554320251216184505.0001): O-Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349263 · Dec 8, 2023
- [AB-357174](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152704886320251216184451.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357174 · Dec 8, 2023
- [AB-391213](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146344589820251216184434.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-391213 · Dec 8, 2023
- [AB-102083](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138991042420251216184433.0001): Screw, Distr. Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-102083 · Dec 8, 2023
- [AB-90788-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138975580920251216184500.0001): Woodruff Key. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-90788-5 · Dec 8, 2023
- [AB-163374](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138652177520251216184458.0001): Felt Strip. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-163374 · Dec 8, 2023
- [AB-357426](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138013653720251216184448.0001): Distributor Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-357426 · Dec 8, 2023
- [AB-86527](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136544385220251216184459.0001): Lubricant. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-86527 · Dec 8, 2023
- [AB-382789](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131202563120251216184436.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-382789 · Dec 8, 2023
- [AB-349326](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129994820320251216184456.0001): Fish Paper. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349326 · Dec 8, 2023
- [AB-50752](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125758886020251216184457.0001): Felt Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-50752 · Dec 8, 2023
- [AB-55501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122580157220251216184441.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-55501 · Dec 8, 2023
- [AB-391309](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120647802220251216184443.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-391309 · Dec 8, 2023
- [AB-92815-62](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118430918720251216184503.0001): Retainer Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-92815-62 · Dec 8, 2023
- [AB-90751-19](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111572971120251216184501.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-90751-19 · Dec 8, 2023
- [AB-349511](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103229167720251216184439.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-349511 · Dec 8, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189689408720240301172612.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180471105320240301172647.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175153480920240301172645.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170183424420240301172611.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169748273120240301172659.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157341881820240301172614.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137841244720240301172609.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137511946420240301172637.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128838889420240301172611.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123611089620240301172613.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122161939520240301172657.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106806348320240301172652.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105506210020240301172621.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194863206620240301172624.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194140969320240301172653.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190385102420240301172638.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023

All of them: https://openairdocs.org/engine/lycoming-igso-480-a1e6/pma.md

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