# Jacobs R-755A2

- Type: Engine model (FAA registry)
- Registry code: 35019
- Manufacturer (registry): JACOBS
- Model: R-755A2
- Engine type: Reciprocating
- Power: 300 hp
- Data sheet: [TCDS E-237](https://openairdocs.org/tcds/E-237) (OpenAirDocs)
- Holder: Air Repair Inc.
- Installed in: 11 registered aircraft
- Page: https://openairdocs.org/engine/jacobs-r-755a2

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 (11)

- [N121JV](https://openairdocs.org/aircraft/N121JV): [Foley Patrick S](https://openairdocs.org/faa-owner/FOLEY%20PATRICK%20S), [Sheridan, WY](https://openairdocs.org/faa-place/WY/Sheridan), built 2010, S/N F5C121
- [N1729B](https://openairdocs.org/aircraft/N1729B): [Aircraft Guaranty Corp Trustee](https://openairdocs.org/faa-owner/AIRCRAFT%20GUARANTY%20CORP%20TRUSTEE), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 1942, S/N 75-5849
- [N173E](https://openairdocs.org/aircraft/N173E): [Waco Partners LLC](https://openairdocs.org/faa-owner/WACO%20PARTNERS%20LLC), [Dunkirk, NY](https://openairdocs.org/faa-place/NY/Dunkirk), S/N 5592
- [N17457](https://openairdocs.org/aircraft/N17457): [Cournoyer John J](https://openairdocs.org/faa-owner/COURNOYER%20JOHN%20J), [Ellsinore, MO](https://openairdocs.org/faa-place/MO/Ellsinore), built 1937, S/N 4600
- [N195BL](https://openairdocs.org/aircraft/N195BL): [Tower Addison P](https://openairdocs.org/faa-owner/TOWER%20ADDISON%20P), [Grayslake, IL](https://openairdocs.org/faa-place/IL/Grayslake), built 1951, S/N 7672
- [N3027B](https://openairdocs.org/aircraft/N3027B): [Lacey William F](https://openairdocs.org/faa-owner/LACEY%20WILLIAM%20F), [Parker, CO](https://openairdocs.org/faa-place/CO/Parker), built 1952, S/N 7910
- [N32094](https://openairdocs.org/aircraft/N32094): [United Fleet Leasing LLC](https://openairdocs.org/faa-owner/UNITED%20FLEET%20LEASING%20LLC), [Johns Island, SC](https://openairdocs.org/faa-place/SC/Johns%20Island), built 1941, S/N 5730
- [N3442V](https://openairdocs.org/aircraft/N3442V): [Adams Richard J](https://openairdocs.org/faa-owner/ADAMS%20RICHARD%20J), [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa), built 1948, S/N 7146
- [N369AS](https://openairdocs.org/aircraft/N369AS): [Cape Aerial Tours Inc DBA](https://openairdocs.org/faa-owner/CAPE%20AERIAL%20TOURS%20INC%20DBA), [Chatham, MA](https://openairdocs.org/faa-place/MA/Chatham), built 1992, S/N F5C-046
- [N9478H](https://openairdocs.org/aircraft/N9478H): [3g Classic Aviation Inc](https://openairdocs.org/faa-owner/3G%20CLASSIC%20AVIATION%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1943, S/N 75-6833
- [N999MH](https://openairdocs.org/aircraft/N999MH): [Detiger Elizabeth](https://openairdocs.org/faa-owner/DETIGER%20ELIZABETH), East Stour Dorset, built 1948, S/N 7168

## NTSB investigations (8)

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 CEN22LA004](https://openairdocs.org/ntsb/CEN22LA004), Oct 4, 2021: Cessna 195 (N3027B), Watkins, CO, substantial damage. Probable cause: The separation of the left main landing gear spring during landing roll due to a preexisting fatigue crack.
- [NTSB WPR12CA196](https://openairdocs.org/ntsb/WPR12CA196), May 5, 2012: Cessna 195 (N3442V), Heber-Overgaard, AZ, substantial damage. Probable cause: The pilot's loss of directional control during takeoff roll upon encountering a wind gust.
- [NTSB NYC06LA134](https://openairdocs.org/ntsb/NYC06LA134), May 30, 2006: Classic Waco YMF (N369AS), Hagerstown, MD, substantial damage. Probable cause: The pilot's failure to maintain directional control during takeoff.
- [NTSB CHI81FEG13](https://openairdocs.org/ntsb/CHI81FEG13), Jun 27, 1981: Waco YKS7 (N17457), Hamilton, OH, destroyed
- [NTSB LAX79DUJ68](https://openairdocs.org/ntsb/LAX79DUJ68), Apr 1, 1979: Cessna 195 (N3442V), Phoenix, AZ, substantial damage
- [NTSB MIA76FK003](https://openairdocs.org/ntsb/MIA76FK003), Jul 23, 1975: Boeing B75N1 (N9478H), Merigold, MS, substantial damage
- [NTSB DEN67A0055](https://openairdocs.org/ntsb/DEN67A0055), Mar 25, 1967: Waco UPF-7 (N32094), Las Cruces, NM, destroyed, 1 fatal
- [NTSB MIA66F0615](https://openairdocs.org/ntsb/MIA66F0615), Jun 26, 1966: Waco UPF7 (N173E), Mooresville, NC, substantial damage

## FAA accident and incident reports (8)

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 20211004016669A](https://openairdocs.org/incident/20211004016669A), Oct 4, 2021: Cessna 195B (N3027B), Watkins, CO, Substantial damage. Immediately after landing at cfo to complete a day VFR part 91 personal flight from rcv, N3027B veered off runway 08 and sustained substantial damage after…
- [Accident 20120505007459A](https://openairdocs.org/incident/20120505007459A), May 5, 2012: Cessna 195 (N3442V), Overgaard, AZ, Destroyed. The pilot lined up to take off runway 21 at Mogollon Airpark. The pilot stated he had a light quartering tailwind. The pilot had just raised the tail when the…
- [Accident 20060530022149A](https://openairdocs.org/incident/20060530022149A), May 30, 2006: Amtr WACOYMF (N369AS), Hagerstown, MD, Substantial damage. (-23) Pilot received his weather report via the internet the evening before the scheduled flight. Tower informed him prior to departure the winds were calm and…
- [Incident 20010912026729I](https://openairdocs.org/incident/20010912026729I), Sep 12, 2001: Waco UPF7 (N173E), Three Rivers, MI. (-23)Pilot flew aircraft during time when national airspace system was closed.
- [Incident 20010829025569I](https://openairdocs.org/incident/20010829025569I), Aug 29, 2001: Waco YKS7 (N17457), Moundcity, MO, Minor damage. (-23) Aircraft was landing to the south at mound city, MO, a Private airstrip. After touchdown and during roll out the right brake locked, and the aircraft…
- [Accident 19810627038809A](https://openairdocs.org/incident/19810627038809A), Jun 27, 1981: Waco YKS7 (N17457), Hamilton, OH, Destroyed. Aircraft crashed during emergency landing after engine quit.
- [Accident 19790401005529A](https://openairdocs.org/incident/19790401005529A), Apr 1, 1979: Cessna 195 (N3442V), Phoenix, AZ, Substantial damage. Pilot taxied his aircraft into parked aircraft.
- [Accident 19750723019089A](https://openairdocs.org/incident/19750723019089A), Jul 23, 1975: Boeing B75N1 (N9478H), Merigold, MS, Substantial damage. Plt pulled elevator ctl full rearward to avoid hitting houses. Struck pwr lines. Flew 19HR last 24HR

## Service difficulty reports (4)

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

- [SDR AUS20020819](https://openairdocs.org/sdr/AUS20020819), Jun 4, 2002: SEAL. DETERIORATED. (AUS) MAGNETO/DISTRIBUTOR OIL SEAL DETERIORATED AND LEAKING. FURTHERINVESTIGATION ALSO FOUND CONTACTS BURNT AND PITTED. CAPACITOR UNSERVICEABLE.
- [SDR AUS20020283](https://openairdocs.org/sdr/AUS20020283), Mar 11, 2002: CYLINDER. SEPARATED. (AUS) ENGINE CYLINDERS (2OFF) LEAKING PAST EXHAUST VALVE. DURING CYLINDER REMOVAL THE CYLINDER HOLD DOWN NUTS WERE FOUND TO BE LOOSE. RED SILICONE SEALANT WAS A
- [SDR AU970762](https://openairdocs.org/sdr/AU970762), May 7, 1997: PIN. FAULTY. (AUS) LH BRAKE FAILED. TWO LININGS SEPARATED FROM BACKING PLATE AND WHEEL ASSEMBLY. LH WING TIP, LH ELEVATOR AND STABILISER TIP CONTACTED RUNWAY. INVESTIGATION 
- [SDR 95ZZZX2127](https://openairdocs.org/sdr/95ZZZX2127), Jan 24, 1995: RINGS. EXCESS WORN. DURING HOT ENGINE START, A CARBURETOR FIRE RESULTED. FIRE EXTINGUISHED USING DRY CHEM. ENGINE WASHED DOWN AND FLOWN. EXCESS OIL CONSUMPTION NOTED (1 GALLON PER 

## STCs that may be installed (OpenAirDocs) (13)

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 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 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-755A Series

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