# N403BN: 2016 Latitude Engineering HQ-40

- Status: Valid registration
- Airframe: [Latitude Engineering HQ-40](https://openairdocs.org/model/latitude-engineering-hq-40) (registry code 061011I)
- Engine: [Power 4 FL B29I](https://openairdocs.org/engine/power-4-fl-b29i) (registry code 61716)
- Serial number: 0007
- Year built: 2016
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, unmanned, research and development, unmanned, crew training
- Airworthiness date: August 24, 2017
- Certificate issued: March 1, 2016
- Expires: March 31, 2029
- Mode S code: A4B7EC
- Registered owner: [Latitude Engineering LLC](https://openairdocs.org/faa-owner/LATITUDE%20ENGINEERING%20LLC)
- Location: [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson)
- Owner type: LLC
- Owner's area on the map: 32.2462° N, 110.9488° W: Placed by OpenAirDocs at the center of ZIP code 85719, 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=403BN
- Page: https://openairdocs.org/aircraft/N403BN

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 (Latitude Engineering HQ-40)

None in force.

### Matched by engine (Power 4 FL B29I)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N403BN.

## FAA accident and incident reports

None matched to N403BN.

## 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.

## Earlier aircraft with N403BN

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N403BN before.

- [Cancelled 1981-02-20](https://openairdocs.org/deregistered/N403BN-1981-02-20): Boeing 727-227, S/N 20394. Exported to Venezuela. Owner: [Aircraft Investors II](https://openairdocs.org/faa-owner/AIRCRAFT%20INVESTORS%20II), [San Francisco, CA](https://openairdocs.org/faa-place/CA/San%20Francisco)

## Related

- Other Latitude Engineering HQ-40 aircraft: https://openairdocs.org/model/latitude-engineering-hq-40/aircraft.md
- The Power 4 FL B29I engine: https://openairdocs.org/engine/power-4-fl-b29i.md

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