# N401BN: 2015 Latitude Engineering HQ-40

- Status: Valid registration
- Airframe: [Latitude Engineering HQ-40](https://openairdocs.org/model/latitude-engineering-hq-40) (registry code 06101G3)
- Engine: [Honda GX-35](https://openairdocs.org/engine/honda-gx-35) (registry code 33800)
- Serial number: 0005
- Year built: 2015
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, unmanned, research and development, unmanned, crew training
- Airworthiness date: August 24, 2017
- Certificate issued: August 10, 2015
- Expires: August 31, 2028
- Mode S code: A4B07E
- 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=401BN
- Page: https://openairdocs.org/aircraft/N401BN

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 (Honda GX-35)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N401BN.

## NTSB investigations on N401BN not matched to an aircraft (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB FTW81IA101](https://openairdocs.org/ntsb/FTW81IA101), Jun 3, 1981: Boeing B-727 (N401BN), Dallas, TX, incident, minor damage

## FAA accident and incident reports

None matched to N401BN.

## Reports on N401BN not matched to an aircraft (1)

They name N401BN, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19810603039849I](https://openairdocs.org/incident/19810603039849I), Jun 3, 1981: Boeing 727 (N401BN), Dallas, TX, Minor damage. Left horizontal stablizer contacted stablizer of a parked aircraft during right turn departure from gate 19.

## 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 Latitude Engineering HQ-40 aircraft: https://openairdocs.org/model/latitude-engineering-hq-40/aircraft.md
- The Honda GX-35 engine: https://openairdocs.org/engine/honda-gx-35.md

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