# N18211: 1939 Howard DGA-11

- Status: Valid registration
- Airframe: [Howard DGA-11](https://openairdocs.org/model/howard-dga-11) (registry code 4690302, 5 seats)
- Engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008)
- Data sheets: [TCDS TC 672](https://openairdocs.org/tcds/TC%20672) (Howard Aircraft Foundation) (OpenAirDocs)
- Serial number: 302
- Year built: 1939
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: March 5, 1959
- Certificate issued: September 15, 2021
- Expires: September 30, 2028
- Mode S code: A14AAF
- Registered owner: [Howard Aircraft Foundation](https://openairdocs.org/faa-owner/HOWARD%20AIRCRAFT%20FOUNDATION)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7452° N, 75.5937° W: Placed by OpenAirDocs at the center of ZIP code 19805, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18211
- Page: https://openairdocs.org/aircraft/N18211

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 Pratt & Whitney R-985 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Howard DGA-11)

None in force.

### Matched by engine (Pratt & Whitney R-985 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N18211.

## FAA accident and incident reports

None matched to N18211.

## 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 N18211 not matched to an aircraft (2)

They name N18211, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR SAJF20110805001](https://openairdocs.org/sdr/SAJF20110805001), Aug 5, 2011: STRINGER. CORRODED. (B-18211) QC FOUND SEVERAL CORROSION COMMON TO STR 50 L, BETWEEN STA 1780 AND 1940. THE CORRODED AREAS ARE ALMOST OUT OF SRM ALLOWABLE LIMITATIONS. PROPOSED TO 
- [SDR SAJFCALS099015](https://openairdocs.org/sdr/SAJFCALS099015), Apr 10, 2010: SKIN. CORRODED. DURING D01 CHECK, AFTER CARGO COMPARTMENT BILGE AREA SKIN FOUND CORROSION NEAR BS 1735 AND S51L-S51R. REINFORCE THE SKIN WITH 2024T3_0.125THK. IAW EO 744-53-00-

## STCs that may be installed (OpenAirDocs) (9)

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-11)

- [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 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 SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. 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

## Related

- Other Howard DGA-11 aircraft: https://openairdocs.org/model/howard-dga-11/aircraft.md
- The Pratt & Whitney R-985 series engine: https://openairdocs.org/engine/pratt-whitney-r-985-series.md

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