# Jacobs R-755B2

- Type: Engine model (FAA registry)
- Registry code: 35023
- Manufacturer (registry): JACOBS
- Model: R-755B2
- Engine type: Reciprocating
- Power: 275 hp
- Data sheet: [TCDS E-237](https://openairdocs.org/tcds/E-237) (OpenAirDocs)
- Holder: Air Repair Inc.
- Installed in: 19 registered aircraft
- Page: https://openairdocs.org/engine/jacobs-r-755b2

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 (19)

- [N1131Z](https://openairdocs.org/aircraft/N1131Z): [Texas Air Museum](https://openairdocs.org/faa-owner/TEXAS%20AIR%20MUSEUM), [Slaton, TX](https://openairdocs.org/faa-place/TX/Slaton), built 1965, S/N 9
- [N120WC](https://openairdocs.org/aircraft/N120WC): [Battle Creek, MI](https://openairdocs.org/faa-place/MI/Battle%20Creek), built 2009, S/N F5C120, Registration pending
- [N14137](https://openairdocs.org/aircraft/N14137): [Allen David K](https://openairdocs.org/faa-owner/ALLEN%20DAVID%20K), [Elbert, CO](https://openairdocs.org/faa-place/CO/Elbert), built 1934, S/N 4223
- [N15216](https://openairdocs.org/aircraft/N15216): [Clear Prop LLC](https://openairdocs.org/faa-owner/CLEAR%20PROP%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 1935, S/N 4300
- [N16444](https://openairdocs.org/aircraft/N16444): [Harris Steven L](https://openairdocs.org/faa-owner/HARRIS%20STEVEN%20L), [Sisters, OR](https://openairdocs.org/faa-place/OR/Sisters), built 1936, S/N 103
- [N17741](https://openairdocs.org/aircraft/N17741): [Anderson Andrew A](https://openairdocs.org/faa-owner/ANDERSON%20ANDREW%20A), [Bates City, MO](https://openairdocs.org/faa-place/MO/Bates%20City), built 1937, S/N 4667
- [N195JS](https://openairdocs.org/aircraft/N195JS): [Scholl Jonathan W](https://openairdocs.org/faa-owner/SCHOLL%20JONATHAN%20W), [Mckinney, TX](https://openairdocs.org/faa-place/TX/Mckinney), built 1952, S/N 7872
- [N195LW](https://openairdocs.org/aircraft/N195LW): [Smiley Neil G](https://openairdocs.org/faa-owner/SMILEY%20NEIL%20G), [Clover, VA](https://openairdocs.org/faa-place/VA/Clover), built 1954, S/N 16126
- [N195PC](https://openairdocs.org/aircraft/N195PC): [Burson Anthony W](https://openairdocs.org/faa-owner/BURSON%20ANTHONY%20W), [Cape Charles, VA](https://openairdocs.org/faa-place/VA/Cape%20Charles), built 1954, S/N 16140
- [N195SB](https://openairdocs.org/aircraft/N195SB): [Jones Caleb A](https://openairdocs.org/faa-owner/JONES%20CALEB%20A), [Sanger, TX](https://openairdocs.org/faa-place/TX/Sanger), built 1952, S/N 7911
- [N2629](https://openairdocs.org/aircraft/N2629): [Fulton Stephen D](https://openairdocs.org/faa-owner/FULTON%20STEPHEN%20D), [Kirkland, WA](https://openairdocs.org/faa-place/WA/Kirkland), S/N 5233
- [N29904](https://openairdocs.org/aircraft/N29904): [Great Lakes Bp LLC](https://openairdocs.org/faa-owner/GREAT%20LAKES%20BP%20LLC), [Cranston, RI](https://openairdocs.org/faa-place/RI/Cranston), built 1940, S/N 5401
- [N3045B](https://openairdocs.org/aircraft/N3045B): [Smokovitz Joseph M](https://openairdocs.org/faa-owner/SMOKOVITZ%20JOSEPH%20M), [Tecumseh, MI](https://openairdocs.org/faa-place/MI/Tecumseh), built 1994, S/N 7928
- [N32018](https://openairdocs.org/aircraft/N32018): [Lock Robert A](https://openairdocs.org/faa-owner/LOCK%20ROBERT%20A), [Lakeland, FL](https://openairdocs.org/faa-place/FL/Lakeland), built 1941, S/N 5650
- [N424NC](https://openairdocs.org/aircraft/N424NC): [Sullivan Farms LLC](https://openairdocs.org/faa-owner/SULLIVAN%20FARMS%20LLC), [Alachua, FL](https://openairdocs.org/faa-place/FL/Alachua), built 2007, S/N F5C114
- [N515BF](https://openairdocs.org/aircraft/N515BF): [Delaware Aviation LLC](https://openairdocs.org/faa-owner/DELAWARE%20AVIATION%20LLC), [Sidney, NY](https://openairdocs.org/faa-place/NY/Sidney), built 1950, S/N 7526
- [N5HX](https://openairdocs.org/aircraft/N5HX): [Cox William Cleveland IV Trustee](https://openairdocs.org/faa-owner/COX%20WILLIAM%20CLEVELAND%20IV%20TRUSTEE), [Shallotte, NC](https://openairdocs.org/faa-place/NC/Shallotte), built 2000, S/N 2504
- [N8517](https://openairdocs.org/aircraft/N8517): [Scallywag Air LLC](https://openairdocs.org/faa-owner/SCALLYWAG%20AIR%20LLC), [Galveston, TX](https://openairdocs.org/faa-place/TX/Galveston), built 2012, S/N 2509
- [N919TT](https://openairdocs.org/aircraft/N919TT): [K2 Air LLC](https://openairdocs.org/faa-owner/K2%20AIR%20LLC), [Katy, TX](https://openairdocs.org/faa-place/TX/Katy), built 2006, S/N F5C111

## NTSB investigations (9)

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 CEN24FA243](https://openairdocs.org/ntsb/CEN24FA243), Jun 30, 2024: Waco YKC (N14137), Selden, KS, substantial damage, 2 fatal. Probable cause: The pilot's inadvertent visual flight into instrument meteorological conditions, which had not been forecast at the time of departure, and which resulted in a loss of control due to spatial…
- [NTSB GAA19CA198](https://openairdocs.org/ntsb/GAA19CA198), Mar 29, 2019: Cessna 195 (N195PC), Ormond Beach, FL, substantial damage. Probable cause: The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and the nose landing gear collapsing.
- [NTSB ERA18LA113](https://openairdocs.org/ntsb/ERA18LA113), Mar 23, 2018: Fairchild Funk M62C F 23A (N1131Z), Columbia, TN, substantial damage. Probable cause: The pilot's inadvertent selection of the fuel selector handle to the off position, which resulted in fuel starvation and a total loss of engine power.
- [NTSB GAA17CA097](https://openairdocs.org/ntsb/GAA17CA097), Dec 11, 2016: Cessna 195 (N195PC), Jacksonville, FL, substantial damage. Probable cause: The other pilot’s failure to see and avoid the stationary airplane during taxi.
- [NTSB ERA15CA329](https://openairdocs.org/ntsb/ERA15CA329), Aug 26, 2015: Cessna 195 (N1516D), Lancaster, NY, substantial damage. Probable cause: The pilot's excessive application of brake pressure, which resulted in the airplane nosing over.
- [NTSB LAX08CA227](https://openairdocs.org/ntsb/LAX08CA227), Jul 8, 2008: Beech E17B (N233EB), Hubbard, OR, substantial damage. Probable cause: The pilot's improper use of brakes during the landing rollout.
- [NTSB LAX02LA254](https://openairdocs.org/ntsb/LAX02LA254), Aug 17, 2002: Waco YPF-7 (N29904), Dewey, AZ, substantial damage. Probable cause: The loss of engine power due to a flooded carburetor. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB MKC88LA169](https://openairdocs.org/ntsb/MKC88LA169), Sep 8, 1988: Cessna 195 (N3040B), Keokuk, IA, substantial damage
- [NTSB CHI82DA310](https://openairdocs.org/ntsb/CHI82DA310), Aug 6, 1982: Cessna 195A (N195SB), Dixon, IL, substantial damage

## FAA accident and incident reports (11)

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.

- [Accident 20240630010269A](https://openairdocs.org/incident/20240630010269A), Jun 30, 2024: Waco YKC (N14137), Selden, KS, Destroyed, 2 fatal. On 6/30/2024 at approximately 5:52 pm CDT, a single engine Waco model Ykc was destroyed after impacting the ground approximately 7 miles southeast of Selden,…
- [Accident 20190329002129A](https://openairdocs.org/incident/20190329002129A), Mar 29, 2019: Cessna 195B (N195PC), Ormond Beach, FL, Substantial damage. Pilot reported he lost control during cross wind landing; landing on rnw 35, winds reported to be 030/6K. Aircraft began to ground loop and left main landing…
- [Accident 20180323014619A](https://openairdocs.org/incident/20180323014619A), Mar 23, 2018: Fairchild Funk M62C F-23A (N1131Z), Columbia, TN, Substantial damage. 20 Minutes into flight, pilot switched from left tank to right tank. Engine ran for about a minute and then started to run rough. Pilot switched back to the…
- [Incident 20170211003679I](https://openairdocs.org/incident/20170211003679I), Feb 11, 2017: Beech E17B (N233EB), Little Falls, MN, Minor damage. Pilot reported that the engine started to run rough and then quit while in cruise flight at low altitude. Engine was unable to be restarted. Aircraft was…
- [Accident 20161211020312A](https://openairdocs.org/incident/20161211020312A), Dec 11, 2016: Cessna 195B (N195PC), Jacksonville, FL, Minor damage. [privacy data omitted] Was taxiing N195PC to the runup area located at the dparture end of runway 32 at crg airport. Upon entering the runup area [privacy data…
- [Accident 20150826014569A](https://openairdocs.org/incident/20150826014569A), Aug 26, 2015: Cessna 195A (N1516D), Lancaster, NY, Substantial damage. On August 26, 2015, a CE-195 aircraft, N1516D, was substantially damaged upon landing at the Buffalo-Lancaster airport (bqr). The flight was being conducted as…
- [Accident 20080708839349A](https://openairdocs.org/incident/20080708839349A), Jul 8, 2008: Beech E17B (N233EB), Hubbard, OR, Substantial damage. (-23) During landing roll out on grass strip pilot was attempting to maintain rudder authority with tail off the ground and applying braking. The combination…
- [Accident 20020817019929A](https://openairdocs.org/incident/20020817019929A), Aug 17, 2002: Waco YPF7 (N29904), Dewey, AZ, Substantial damage. (.19) On August 17, 2002, at 1500 pacific daylight time, a Waco YPF-7 vintage airplane, N29904, was substantially damaged during a forced landing following a…
- [Incident 20010211004689I](https://openairdocs.org/incident/20010211004689I), Feb 11, 2001: Waco YPF7 (N29904), Phoenix, AZ, Minor damage. (-23) Pilot statement: the following is a chronological description of events that occurred on the morning ot February 11, 2001, involving my aircraft, a Waco…
- [Incident 19950709026239I](https://openairdocs.org/incident/19950709026239I), Jul 9, 1995: Waco YOC1 (N15216), Greenfield, IN, Minor damage. Engine failed after liftoff. Landed on runway. Ran off end into corn. Collapsed landing gear.
- [Accident 19880908038429A](https://openairdocs.org/incident/19880908038429A), Sep 8, 1988: Cessna 195 (N3040B), Keokuk, IA, Substantial damage. CFI refused to ok solo flights. Pilot got former owner to fly with him, tried to correct swerve,nosed up. Hit prop.

## Service difficulty reports (9)

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

- [SDR 2012FA0000686](https://openairdocs.org/sdr/2012FA0000686), Oct 10, 2012: NUT. LOOSE. MANY CYLINDER HOLD DOWN NUTS WERE LOOSE ON INSPECTION OF TORQUE OF THOSE NUTS. THIS HAS BEEN OCCURING ANNUALLY. MFG IS USING A NYLON TYPE SELF LOCKING NUTS TO H
- [SDR CA060629008](https://openairdocs.org/sdr/CA060629008), Jun 20, 2006: CONTACT. DEFECTIVE. (CAN) THE GOLD PLATING ON THE BATTERY CONTACT IS FLAKING OFF. THE EXPOSED METAL IS NON-CONDUCTIVE AND THEREFORE THE UNIT NO LONGER FUNCTIONS. (TC# 20060629008)
- [SDR 2002FA0001353](https://openairdocs.org/sdr/2002FA0001353), Nov 1, 2002: PULLEY. WORN. ELEVATOR PULLEYS 20 PERCENT WORN.
- [SDR 2002FA0001352](https://openairdocs.org/sdr/2002FA0001352), Sep 1, 2002: PULLEY. WORN. ELEVATOR PULLEYS WORN.
- [SDR AU000718](https://openairdocs.org/sdr/AU000718), Sep 1, 2000: STIFFENER. BROKEN. (AUS) RUDDER LOWER STIFFENER RUSTED AND SEPARATED FROM LOWER RUDDER BOW. SUBMITTER SUSPECTED CAUSED BY TRAPPED WATER. (X)
- [SDR AU990440](https://openairdocs.org/sdr/AU990440), May 7, 1999: EXHAUST VALVE. DAMAGED. (AUS) EXHAUST VALVES ON ALL CYLINDERS WERE BADLY DEFORMED ON THE VALVE STEM TIPS. INVESTIGATION FOUND ABNORMAL WEAR ON THE TIPS OF THE INLET VALVES.
- [SDR 98ZZZX3471](https://openairdocs.org/sdr/98ZZZX3471), Aug 14, 1998: CONTROL CABLE. FAILED. THROTTLE CABLE BROKE ON APPROACH TO LANDING LEAVING THROTTLE PLATE APPROX ONE-HALF WAY OPEN. A SEMI-UNEVENTFUL LANDING FOLLOWED USING MIXTURE CONTROL. INVEST RE
- [SDR AU980470](https://openairdocs.org/sdr/AU980470), Apr 25, 1998: BLADE. CRACKED. (AUS) PROPELLER HAD SPLITS DEVELOPING AFT OF THE METAL LEADING EDGE AND BETWEEN LAMINATION MIDWAY ALONG THE CENTER OF BLADE. FINE CRACKS WERE ALSO FOUND IN THE 
- [SDR 95ZZZX4594](https://openairdocs.org/sdr/95ZZZX4594), Aug 29, 1995: ENGINE. FAILED. PILOT REPORTED SUDDEN SEVERE VIBRATION APPROXIMATELY 20 MINUTES INTO FLIGHT FOLLOWED WITHIN 1-2 MINUTES BY COMPLETE LOSS OF OIL PRESSURE TO ZERO. APPROXIMATELY 

## STCs that may be installed (OpenAirDocs) (12)

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 SE4842NM](https://openairdocs.org/stc/SE4842NM): Installation of auxiliary oil sump tank. The 195 Factory LLC
- [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 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 SE00809WI](https://openairdocs.org/stc/SE00809WI): Installation of a modified alternate source of supply, engine ignition coil assembly and condenser. 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 SE01288WI](https://openairdocs.org/stc/SE01288WI): Modification of Engines to replace carburetor with fuel injection. Data required: (1) Butterfly Aviation Master Drawing List Report BA1001-11, dated October 28, 2004, and (2) Butterfly Aviation Instructions for Continued Airworthiness Report BA1001-8, dated October 26, 2004, or later FAA Approved revisions to (1) or (2). 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 SE02589AT](https://openairdocs.org/stc/SE02589AT): Installation of Air Repair, Inc. magneto part numbers VMN7-DF5-ARMOD with automatic advance per Air Repair, Inc. Installation Instructions, document number 1200C, dated 9/5/2002 or lter FAA approved revision. The VMN7-DF5-ARMOD magnetos are obtained from Bendix VMN7-DF5 or VMN7-DFA magnetos modified per Air Repair, Inc. Service Instructions, document number 1200A dtd 9/5/02 or other FAA approved revision. Air Repair Inc
- [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-755B Series

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