# N39668: Howard DGA-18K

- Status: Valid registration
- Airframe: [Howard DGA-18K](https://openairdocs.org/model/howard-dga-18k) (registry code 4690604, 2 seats)
- Data sheets: [TCDS TC 739](https://openairdocs.org/tcds/TC%20739) (Howard Aircraft Foundation) (OpenAirDocs)
- Serial number: 668
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Certificate issued: November 9, 1993
- Expires: October 31, 2028
- Mode S code: A49C5E
- Registered owner: [Arkansas Air Museum](https://openairdocs.org/faa-owner/ARKANSAS%20AIR%20MUSEUM)
- Location: [Fayetteville, AR](https://openairdocs.org/faa-place/AR/Fayetteville)
- Owner type: Corporation
- Owner's area on the map: 35.9924° N, 94.0856° W: Placed by OpenAirDocs at the center of ZIP code 72701, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=39668
- Page: https://openairdocs.org/aircraft/N39668

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 (Howard DGA-18K)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N39668.

## FAA accident and incident reports

None matched to N39668.

## 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) (8)

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 (Howard DGA-18K)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA02594SE](https://openairdocs.org/stc/SA02594SE): SkyView HDX Instrumentation and Autopilot System manufactured. Dynon Avionics
- [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 SA02283SE PAGE 1](https://openairdocs.org/stc/SA02283SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc
- [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc
- [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International 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

## Related

- Other Howard DGA-18K aircraft: https://openairdocs.org/model/howard-dga-18k/aircraft.md

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