# N518DF: 2018 Northrop Grumman Systems R03

- Status: Valid registration
- Airframe: [Northrop Grumman Systems R03](https://openairdocs.org/model/northrop-grumman-systems-r03) (registry code 6451203, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 00001
- Year built: 2018
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, research and development, crew training, market survey
- Airworthiness date: October 27, 2021
- Certificate issued: July 17, 2018
- Expires: July 31, 2028
- Mode S code: A67F78
- Registered owner: [Northrop Grumman Systems Corp](https://openairdocs.org/faa-owner/NORTHROP%20GRUMMAN%20SYSTEMS%20CORP)
- Location: [El Segundo, CA](https://openairdocs.org/faa-place/CA/El%20Segundo)
- Owner type: Corporation
- Owner's area on the map: 33.9171° N, 118.4016° W: Placed by OpenAirDocs at the center of ZIP code 90245, 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=518DF
- Page: https://openairdocs.org/aircraft/N518DF

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 (Northrop Grumman Systems R03)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N518DF.

## FAA accident and incident reports

None matched to N518DF.

## 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)

None matched to this aircraft's models.

## Related

- Other Northrop Grumman Systems R03 aircraft: https://openairdocs.org/model/northrop-grumman-systems-r03/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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