# Jacobs R-755A1 - Type: Engine model (FAA registry) - Registry code: 35018 - Manufacturer (registry): JACOBS - Model: R-755A1 - Engine type: Reciprocating - Power: 300 hp - Data sheet: [TCDS E-237](https://openairdocs.org/tcds/E-237) (OpenAirDocs) - Holder: Air Repair Inc. - Installed in: 0 registered aircraft - Page: https://openairdocs.org/engine/jacobs-r-755a1 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. None matched. ## 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 (28) As reported by operators and repair stations, by the model named in the report. - [SDR 2004FA0000449](https://openairdocs.org/sdr/2004FA0000449), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000450](https://openairdocs.org/sdr/2004FA0000450), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000451](https://openairdocs.org/sdr/2004FA0000451), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000452](https://openairdocs.org/sdr/2004FA0000452), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000453](https://openairdocs.org/sdr/2004FA0000453), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM INBOARD AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND B - [SDR 2004FA0000457](https://openairdocs.org/sdr/2004FA0000457), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000458](https://openairdocs.org/sdr/2004FA0000458), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM INBOARD AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND B - [SDR 2004FA0000461](https://openairdocs.org/sdr/2004FA0000461), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000464](https://openairdocs.org/sdr/2004FA0000464), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000469](https://openairdocs.org/sdr/2004FA0000469), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000470](https://openairdocs.org/sdr/2004FA0000470), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000473](https://openairdocs.org/sdr/2004FA0000473), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000474](https://openairdocs.org/sdr/2004FA0000474), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000475](https://openairdocs.org/sdr/2004FA0000475), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000477](https://openairdocs.org/sdr/2004FA0000477), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000479](https://openairdocs.org/sdr/2004FA0000479), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000484](https://openairdocs.org/sdr/2004FA0000484), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000485](https://openairdocs.org/sdr/2004FA0000485), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000486](https://openairdocs.org/sdr/2004FA0000486), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000488](https://openairdocs.org/sdr/2004FA0000488), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000492](https://openairdocs.org/sdr/2004FA0000492), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000493](https://openairdocs.org/sdr/2004FA0000493), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000495](https://openairdocs.org/sdr/2004FA0000495), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITION: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARING - [SDR 2004FA0000496](https://openairdocs.org/sdr/2004FA0000496), May 25, 2004: HINGE BRACKET. CRACKED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000497](https://openairdocs.org/sdr/2004FA0000497), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000498](https://openairdocs.org/sdr/2004FA0000498), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000499](https://openairdocs.org/sdr/2004FA0000499), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN - [SDR 2004FA0000504](https://openairdocs.org/sdr/2004FA0000504), May 25, 2004: HINGE BRACKET. CORRODED. INSPECTED ORIGINAL MAGNESIUM IB AILERON HINGE BRACKETS AND FOUND SOME OR ALL OF THE FOLLOWING CONDITIONS: SEVERELY CORRODED BRACKET BODY AROUND MOUNT AND BEARIN ## STCs that may be installed (OpenAirDocs) (9) 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 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 SE572SW](https://openairdocs.org/stc/SE572SW): Installation of Jacobs RAS325A exhaust valve rotocaps. Air Repair Inc - [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists R-755A Series - [STC SE04136AT](https://openairdocs.org/stc/SE04136AT): Installation of Bendix Scintilla WL-7A Battery Ignition Timer (distributor) modified from a breaker points and condenser design to a Hall Effect electronic sensor design. Air Repair Inc - [STC SE01652WI](https://openairdocs.org/stc/SE01652WI): Modification of engine to replace contact points and condenser controlled Bendix Scintilla WL-7A battery timer (distributor) with an electronically controlled WL-7A-M battery timer. Radial Engines Ltd - [STC SE01243WI](https://openairdocs.org/stc/SE01243WI): Installation of Barron Aviation intake tube drain kits on the engines listed on the attached FAA Approved Model List (AML) No. SE01243WI, dated April 26, 2004, or later FAA Approved revision. Barron Aviation - [STC SE2416CE](https://openairdocs.org/stc/SE2416CE): Add the following approved fuel: unleaded automotive gasoline 87 minimum antiknock index and leaded automotive index(RON+MON)/2. Petersen Aviation Inc - [STC SE639SW](https://openairdocs.org/stc/SE639SW): Continental W-670 link rods. Aircraft Engine Service Inc. Lists R-755A Series --- 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.