# N56374: 1943 Stinson L-5

- Status: Valid registration
- Airframe: [Stinson L-5](https://openairdocs.org/model/stinson-l-5) (registry code 8630202, 2 seats)
- Engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018)
- Data sheets: [TCDS A-764](https://openairdocs.org/tcds/A-764) (Consolidated Vultee Aircraft Corporation Stinson Division) (OpenAirDocs)
- Serial number: 76-769
- Year built: 1943
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Restricted, agriculture and pest control
- Certificate issued: June 19, 1991
- Expires: November 30, 2027
- Mode S code: A73579
- Registered owner: [Ender Ray L](https://openairdocs.org/faa-owner/ENDER%20RAY%20L)
- Location: [San Marcos, TX](https://openairdocs.org/faa-place/TX/San%20Marcos)
- Owner type: Individual
- Owner's area on the map: 29.8817° N, 97.9848° W: Placed by OpenAirDocs at the center of ZIP code 78666, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=56374
- Page: https://openairdocs.org/aircraft/N56374

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Continental W670 model are included.

## ADs that may apply (OpenAirDocs): 4 in force

### Matched by airframe (Stinson L-5)

- [AD 47-50-04](https://openairdocs.org/ad/47-50-04): Elevator Push-Pull Tube · Consolidated Vultee Aircraft Corporation, Stinson Division L-5, L-5B, L-5C and 4 more
- [AD 46-31-02](https://openairdocs.org/ad/46-31-02): Torque Tube Aft of Rear Seat · Consolidated Vultee Aircraft Corporation, Stinson Division L-5, L-5B, L-5C and 4 more

### Matched by engine (Continental W670 series)

- [AD 53-09-04](https://openairdocs.org/ad/53-09-04): Propeller Blades · Continental W-670-9A
- [AD 50-12-01](https://openairdocs.org/ad/50-12-01): Propeller Blade · Hamilton Standard Propeller Blades, W670-16, W670-6A and 1 more

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N56374.

## FAA accident and incident reports

None matched to N56374.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (55, first 50)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Stinson L-5)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA00081NY](https://openairdocs.org/stc/SA00081NY): Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. Alcor LLC
- [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC
- [STC SA03898NY](https://openairdocs.org/stc/SA03898NY): Installation and maintenance of ORATEX covering and coating material. Aircraft Design & Certification Ltd
- [STC SA04568CH](https://openairdocs.org/stc/SA04568CH): Installation of the uAvionix tailBeaconX, a tail mounted position light with integrated Automatic Dependent Surveillance - Broadcast (ADS-B) Out and 1090MHz Mode-S transponder functionality. uAvionix Corporation
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc
- [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc
- [STC SA00410BO](https://openairdocs.org/stc/SA00410BO): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation
- [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA04032CH](https://openairdocs.org/stc/SA04032CH): Install rocker switch assemblies. Electroair Acquisition Corporation
- [STC SA00024NY](https://openairdocs.org/stc/SA00024NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K007 on single or multi-engine fixed wing light aircraft incorporating Lycoming reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc
- [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc
- [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc
- [STC SA02402SE PAGE 2](https://openairdocs.org/stc/SA02402SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc
- [STC ST00961LA](https://openairdocs.org/stc/ST00961LA): Installation of MASS Systems fire extinguisher cartridges as replacements for Walter Kidde Aerospace fire extinguisher cartridges in fire extinguisher bottles installed in the airplane models noted on the FAA Approved Model List dated June 29, 2000, or later FAA approved revisions. These fire extinguisher cartridges are in accordance with the MASS Systems Master Drawing List No. 30980-1, "Slug Thrower Cartridges Master Drawing List", Revision N/C, dated June 26, 2000, or later FAA approved revisions. AMETEK AMERON LLC d/b/a MASS Systems
- [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc
- [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. Electronics International Inc
- [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC
- [STC SA01157LA](https://openairdocs.org/stc/SA01157LA): Installation of Electronics International Model FP-5 or FP-5L fuel flow/fuel pressure instrument as a replacement instrument. Electronics International Inc
- [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc
- [STC SA02520AT](https://openairdocs.org/stc/SA02520AT): Installation of M-20 Oil Separator, model 600-WP. M-20 Oil Separators LLC
- [STC SA02168AK](https://openairdocs.org/stc/SA02168AK): Installation of hourmeter airspeed switch. For unpressurized aircraft only. Pressurized aircraft must have pressurization system deactivated. Avalaska Inc
- [STC SA2-952](https://openairdocs.org/stc/SA2-952): Installation of fiberglass covering. Razorback Fabrics Inc
- [STC SA5159NM](https://openairdocs.org/stc/SA5159NM): Installation of chip detector system. Northwest Aircraft Inc
- [STC SA2396CE](https://openairdocs.org/stc/SA2396CE): Operation of airplane on unleaded automotive gasoline 87 minimum antiknock index and leaded automotive gasoline 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved. Petersen Aviation Inc
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA4-1210](https://openairdocs.org/stc/SA4-1210): Installation of Eonnex cover on aircraft surfaces. Ceconite, Inc
- [STC SA495NW](https://openairdocs.org/stc/SA495NW): Installation of Madras Air Service Super Tips. Morgan, Denis L
- [STC SA798EA](https://openairdocs.org/stc/SA798EA): Installation of Monitair exhaust gas combustion monitor kit. Rosemount Engineering Co
- [STC SA2PC](https://openairdocs.org/stc/SA2PC): Air to ground public address system. Hawaii Wing Civil Air Patrol
- [STC SA340WE](https://openairdocs.org/stc/SA340WE): Engine mount 2028 (restricted category only). Serv-Aero Engineering Inc
- [STC SA4-1036](https://openairdocs.org/stc/SA4-1036): Ceconite 101 covering of complete airplane. Cooper Engineering Corporation
- [STC SA4-763](https://openairdocs.org/stc/SA4-763): Glass cloth applies to wings, fuselage, and ailerons. Glasco-Air Products
- [STC SA001410BO](https://openairdocs.org/stc/SA001410BO) (historical): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation

### Approved for the engine (Continental W670 series)

- [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. Lists W670-16
- [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. Lists W670-16
- [STC SE7492SW](https://openairdocs.org/stc/SE7492SW): Install Delco starter P/N 1108684 or Eclipse/Bendix Utica model E80 starters. Rare Aircraft Ltd. Lists W670-16
- [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. Lists W670-23
- [STC SE00809WI](https://openairdocs.org/stc/SE00809WI): Installation of a modified alternate source of supply, engine ignition coil assembly and condenser. Air Repair Inc. Lists W670-23
- [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. Lists W670-23
- [STC SE01144SE](https://openairdocs.org/stc/SE01144SE): Installation of Olde Thyme Aviation, Inc. pistons, P/N OTA-4032-T6 or Air Repair, Inc. pistons, P/Ns AR4177 (5 each) and AR4177-1 (2 each), to replace Teledyne Continental Motors pistons P/N 4177. Air Repair Inc. Lists W670-16
- [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. Lists W670-16
- [STC SE01145SE](https://openairdocs.org/stc/SE01145SE): Option 1) Installation of Olde Thyme Aviation Inc. crankshaft bearings OTA-21201-AB (rear) and OTA-21301-FB (front) Option 2) Installation of Olde Thyme Aviation Inc. replacement intake valve guides P/N OTA-20241-IG Option 3) Installation of Olde Thyme Aviation Inc. replacement exhaust valve guides P/N OTA-20406-EG. Air Repair Inc. Lists W670-16
- [STC SE01146SE](https://openairdocs.org/stc/SE01146SE): Option 1) Installation of Gold Coast Aviation crankshaft bearings GCA-21201-AB (rear) and GCA-21301-FB (front) Option 2) Installation of Gold Coast Aviation replacement intake valve guides P/N GCA-20241-IG Option 3) Installation of Gold Coast Aviation replacement exhaust valve guides P/N GCA-20406-EG. Gold Coast Aviation Service Inc. Lists W670-16
- [STC SE00946LA](https://openairdocs.org/stc/SE00946LA): Installation of engine crankshaft front and rear bearings. Holloway Engineering Co. Lists W670-6A
- [STC SE00372LA](https://openairdocs.org/stc/SE00372LA): Installation of a Jacobs shielded ignition harness on Teledyne Continental Motors engine models. Aero Engines Inc. Lists W670-16
- [STC SE7491SW](https://openairdocs.org/stc/SE7491SW): Install Scintilla VNM-7DFA magnetos on W-670-6A and -6N engines. Air Repair

All 55: https://openairdocs.org/aircraft/N56374/stcs.md

## Related

- Other Stinson L-5 aircraft: https://openairdocs.org/model/stinson-l-5/aircraft.md
- The Continental W670 series engine: https://openairdocs.org/engine/continental-w670-series.md

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