# N16205: 1936 Waco YQC-6

- Status: Valid registration
- Airframe: [Waco YQC-6](https://openairdocs.org/model/waco-yqc-6) (registry code 9600646, 5 seats)
- Engine: [Jacobs L4 /R755-7](https://openairdocs.org/engine/jacobs-l4-r755-7) (registry code 35003)
- Data sheets: [TCDS TC 598](https://openairdocs.org/tcds/TC%20598) (The Waco Aircraft Company) (OpenAirDocs)
- Serial number: 4405
- Year built: 1936
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: May 24, 1962
- Certificate issued: April 1, 2025
- Expires: April 30, 2032
- Mode S code: A0FB92
- Registered owner: [Port Townsend Aero Museum](https://openairdocs.org/faa-owner/PORT%20TOWNSEND%20AERO%20MUSEUM)
- Location: [Port Townsend, WA](https://openairdocs.org/faa-place/WA/Port%20Townsend)
- Owner type: Corporation
- Owner's area on the map: 48.0413° N, 122.8267° W: Placed by OpenAirDocs at the center of ZIP code 98368, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=16205
- Page: https://openairdocs.org/aircraft/N16205

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 YQC-6)

None in force.

### Matched by engine (Jacobs L4 /R755-7)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N16205.

## FAA accident and incident reports

None matched to N16205.

## 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 N16205 not matched to an aircraft (1)

They name N16205, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR 2017FA0000131](https://openairdocs.org/sdr/2017FA0000131), Jan 8, 2015: FRAME. CRACKED. THE RT BS 130 FRAME WAS FOUND CRACKED DURING A PHASE VISUAL INSPECTION. THE CRACK EXTENDED OUTBOARD 5.0 INCH FROM THE INBOARD FLANGE FREE EDGE AT RBL 67. THE FR

## STCs that may be installed (OpenAirDocs) (5)

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 YQC-6)

- [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 SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc
- [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 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

## Related

- Other Waco YQC-6 aircraft: https://openairdocs.org/model/waco-yqc-6/aircraft.md
- The Jacobs L4 /R755-7 engine: https://openairdocs.org/engine/jacobs-l4-r755-7.md

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