# N16591: 1936 Waco EQC-6

- Status: Valid registration
- Airframe: [Waco EQC-6](https://openairdocs.org/model/waco-eqc-6) (registry code 9600644, 5 seats)
- Engine: [Wright 760E-2](https://openairdocs.org/engine/wright-760e-2) (registry code 67011)
- Data sheets: [TCDS ATC 597](https://openairdocs.org/tcds/ATC%20597) (The Waco Aircraft Company) (OpenAirDocs)
- Serial number: 4490
- Year built: 1936
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: July 2, 1959
- Certificate issued: May 29, 2008
- Expires: May 31, 2027
- Mode S code: A107EE
- Registered owners: [Pemberton Addison Jc](https://openairdocs.org/faa-owner/PEMBERTON%20ADDISON%20JC), [Pemberton Wendra May](https://openairdocs.org/faa-owner/PEMBERTON%20WENDRA%20MAY)
- Location: [Spokane, WA](https://openairdocs.org/faa-place/WA/Spokane)
- Owner type: Co-owned
- Owner's area on the map: 47.6653° N, 117.3073° W: Placed by OpenAirDocs at the center of ZIP code 99212, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=16591
- Page: https://openairdocs.org/aircraft/N16591

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 EQC-6)

None in force.

### Matched by engine (Wright 760E-2)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N16591.

## FAA accident and incident reports

None matched to N16591.

## 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) (6)

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 EQC-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 SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc
- [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 SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

## Related

- Other Waco EQC-6 aircraft: https://openairdocs.org/model/waco-eqc-6/aircraft.md
- The Wright 760E-2 engine: https://openairdocs.org/engine/wright-760e-2.md

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