# N762K: 1929 Waco DSO - Status: Valid registration - Airframe: [Waco DSO](https://openairdocs.org/model/waco-dso) (registry code 9601208, 3 seats) - Engine: [Continental R670-SERIES series](https://openairdocs.org/engine/continental-r670-series-series) (registry code 17016) - Data sheets: [TCDS ATC 42 Waco](https://openairdocs.org/tcds/ATC%2042%20Waco) (The Waco Aircraft Company) (OpenAirDocs) - Serial number: A-137 - Year built: 1929 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Restricted, agriculture and pest control - Airworthiness date: July 7, 1956 - Certificate issued: August 8, 2012 - Expires: August 31, 2028 - Mode S code: AA49D7 - Registered owner: [Rare Aircraft Ltd](https://openairdocs.org/faa-owner/RARE%20AIRCRAFT%20LTD) - Location: [Faribault, MN](https://openairdocs.org/faa-place/MN/Faribault) - Owner type: Corporation - Owner's area on the map: 44.2975° N, 93.2739° W: Placed by OpenAirDocs at the center of ZIP code 55021, 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=762K - Page: https://openairdocs.org/aircraft/N762K 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 R670-SERIES model are included. ## ADs that may apply (OpenAirDocs): 1 in force ### Matched by airframe (Waco DSO) None in force. ### Matched by engine (Continental R670-SERIES series) - [AD 95-21-15](https://openairdocs.org/ad/95-21-15): Aviation Gasoline · Continental Motors A-65-8, C85-12F, C85-12FJ and 77 more. Effective Nov 28, 1995 ### Historical (superseded or no longer in force) - [AD 94-14-12](https://openairdocs.org/ad/94-14-12) (historical): Octane Aviation Gasoline · Teledyne Continental Motors A-65-8, C85-12, E185-11 and 68 more ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N762K. ## FAA accident and incident reports None matched to N762K. ## 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) (13) 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 DSO) - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [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 SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. 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 SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc - [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International - [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International - [STC SA2190NM PAGE 2](https://openairdocs.org/stc/SA2190NM%20PAGE%202): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International - [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International ### Approved for the engine (Continental R670-SERIES 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 R-670-B - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc. Lists R-670-B - [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co ## Related - Other Waco DSO aircraft: https://openairdocs.org/model/waco-dso/aircraft.md - The Continental R670-SERIES series engine: https://openairdocs.org/engine/continental-r670-series-series.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.