# N14137: 1934 Waco YKC - Status: Valid registration - Airframe: [Waco YKC](https://openairdocs.org/model/waco-ykc) (registry code 9600816, 5 seats) - Engine: [Jacobs R-755B2](https://openairdocs.org/engine/jacobs-r-755b2) (registry code 35023) - Data sheets: [TCDS A-533](https://openairdocs.org/tcds/A-533) (The Waco Aircraft Company), [TCDS E-237](https://openairdocs.org/tcds/E-237) (Air Repair Inc.) (OpenAirDocs) - Serial number: 4223 - Year built: 1934 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: June 4, 2013 - Certificate issued: November 19, 2004 - Expires: January 31, 2029 - Mode S code: A0A948 - Registered owners: [Allen David K](https://openairdocs.org/faa-owner/ALLEN%20DAVID%20K), [Allen Jeanne M](https://openairdocs.org/faa-owner/ALLEN%20JEANNE%20M) - Location: [Elbert, CO](https://openairdocs.org/faa-place/CO/Elbert) - Owner type: Co-owned - Owner's area on the map: 39.1861° N, 104.5159° W: Placed by OpenAirDocs at the center of ZIP code 80106, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=14137 - Page: https://openairdocs.org/aircraft/N14137 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. ## ADs that may apply (OpenAirDocs): 0 in force ### Matched by airframe (Waco YKC) None in force. ### Matched by engine (Jacobs R-755B2) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations (1) 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… ## FAA accident and incident reports (1) 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,… ## 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) (26) 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 (Waco YKC) - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc - [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc - [STC SE02712SE](https://openairdocs.org/stc/SE02712SE): Installation of the Oil Scavenging Pump System for Jacobs L-4 and R-755. Henry F. Rogers - [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 SA01406NY](https://openairdocs.org/stc/SA01406NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and rotary wing. Airwolf Filter Corporation - [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems. J P Instruments - [STC SA02428SE](https://openairdocs.org/stc/SA02428SE): Installation of an Air Stream Switch for an electric time recording device on non-pressurized aircraft. Henry F Rogers/David E Polley - [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc - [STC SA00432SE](https://openairdocs.org/stc/SA00432SE): Installation of EGT 701 series fuel flow instrument. J P Instruments - [STC SA00861SE](https://openairdocs.org/stc/SA00861SE): Installation of J.P. Instruments (JPI) fuel flow indicating system. J P Instruments - [STC SA2432CE](https://openairdocs.org/stc/SA2432CE): Operation of airplane on unleaded automotive gasoline 87 minimum anti-knock index and leaded automotive gasoline, 88 minimum antiknock index (RON+MON)/2. Petersen Aviation Inc ### Approved for the engine (Jacobs R-755B2) - [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 ## Related - Other Waco YKC aircraft: https://openairdocs.org/model/waco-ykc/aircraft.md - The Jacobs R-755B2 engine: https://openairdocs.org/engine/jacobs-r-755b2.md --- 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.