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LYCOMING ENGINES
652 Oliver Street
Williamsport, PA 17701
1-800-258-3279

KNOWLEDGE BASE

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Service Instructions | 11.19.08
Service Instruction No. 1522

Reprint of Precision Service Information Letter No. SIL RS-62 Revision 2

Service Instructions | 11.19.08
Service Instruction No. 1521

Reprint of Precision Service Information Letter No. SIL RS-35 Revision 1

Parts Catalog | 10.31.08
IO-540-AC1A5 Part's Catalog

Document Part No. PC-615-12

Service Bulletins | 10.17.08
Service Bulletin No. 584 B

Reprint of Mandatory Unison Service Bulletin No. SB3-08A

Service Instructions | 10.17.08
Service Instruction No. 1125 D

Alternate Crankcase Parting Surface Sealants

Service Bulletins | 10.10.08
Service Bulletin No. 582 A

Reprint of Precision Airmotive Mandatory Service Bulletin No. MSA-13

Service Instructions | 09.23.08
Service Instruction No. 1275 C

Cleaning Fuel Injector Nozzles

Service Bulletins | 09.19.08
Service Bulletin No. 577 A

Reprint of Sky-Tec Service Bulletin No. 07-01, Rev. D

Service Instructions | 09.19.08
Service Instruction No. 1519 A

Reprint of Precision Service Information Letter No. SIL RS-87 Revision 1

Service Bulletins | 08.22.08
Service Bulletin No. 564 A 

Inspection of Suction Screen Length

Service Instructions | 08.22.08
Service Instruction No. 1520 

Reprint of Precision Service Information Letter No. SIL RS-88

Installation & Operator Manuals | 07.31.08
IO-390-A Operator's Manual

Document Part No. 60297-34

Service Bulletins | 07.21.08
Service Bulletin No. 583 A

Reprint of Mandatory Unison Service Bulletin No. SB2-08

Service Bulletins | 07.18.08
Service Bulletin No. 446 E

The Use of Lycoming LW-16702 Oil Additive

Installation & Operator Manuals | 06.30.08
GO-480, IGO-480, GSO-480 & IGSO-480 Operator's Manual

Document Part No. 60297-14

Installation & Operator Manuals | 06.30.08
(L)IO-360-M1A Operator's Manual

Document Part No. 60297-36

Parts Catalog | 06.30.08
IO-540-AF1A5 Parts Catalog

Document Part No. PC-615-14

Service Instructions | 05.16.08
Service Instruction No. 1257 G

Horsepower, Manifold Pressure and RPM Values

Installation & Operator Manuals | 04.30.08
VO-540, IVO-540 & TIVO-540 Operator's Manual

Document Part No. 60297-17

Service Instructions | 03.14.08
Service Instruction No. 1518

Reprint of Precision Service Information Letter No. SIL RS-84

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Lycoming Engines is an Operating Division of Avco Corporation. ©2025 Avco Corporation.

LYCOMING ENGINES
652 Oliver Street
Williamsport, PA 17701
1-800-258-3279