# N861M: 1929 Waco BSO

- Status: Valid registration
- Airframe: [Waco BSO](https://openairdocs.org/model/waco-bso) (registry code 9601204, 3 seats)
- Engine: [Wright R760](https://openairdocs.org/engine/wright-r760) (registry code 66850)
- Data sheets: [TCDS ATC 168](https://openairdocs.org/tcds/ATC%20168) (The Waco Aircraft Company) (OpenAirDocs)
- Serial number: 3006
- Year built: 1929
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: September 27, 2025
- Certificate issued: April 21, 2000
- Expires: January 31, 2030
- Mode S code: ABD3A1
- Registered owner: [Pietsch Kent D](https://openairdocs.org/faa-owner/PIETSCH%20KENT%20D)
- Location: [Burlington, ND](https://openairdocs.org/faa-place/ND/Burlington)
- Owner type: Individual
- Owner's area on the map: 48.2500° N, 101.5010° W: Placed by OpenAirDocs at the center of ZIP code 58722, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=861M
- Page: https://openairdocs.org/aircraft/N861M

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 BSO)

None in force.

### Matched by engine (Wright R760)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N861M.

## FAA accident and incident reports

None matched to N861M.

## 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.

## Service difficulty reports on N861M not matched to an aircraft (1)

They name N861M, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR MK9A20131030001](https://openairdocs.org/sdr/MK9A20131030001), Oct 21, 2013: STRUCTURE. DAMAGED. FOLLOWING AN EMERGENCY LANDING, RT WING SUSTAINED DAMAGE WHEN THE RT WING STRUCK A ROADWAY SIGN. THE DAMAGE EXTENDS FROM WS 227 OUT TO WS 312, WING TIP. INITIAL

## STCs that may be installed (OpenAirDocs) (11)

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 BSO)

- [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 SA3862NM PAGE 2](https://openairdocs.org/stc/SA3862NM%20PAGE%202): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories. 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

## Related

- Other Waco BSO aircraft: https://openairdocs.org/model/waco-bso/aircraft.md
- The Wright R760 engine: https://openairdocs.org/engine/wright-r760.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.