# N545TW: 2026 T Rock Air AL-18

- Status: Valid registration
- Airframe: [T Rock Air AL-18](https://openairdocs.org/model/t-rock-air-al-18) (registry code 056427D, 2 seats)
- Engine: [Rotax 916 1S3 A](https://openairdocs.org/engine/rotax-916-1s3-a) (registry code 55625)
- Serial number: AL-406
- Year built: 2026
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: American Legend Aircraft Co AL18
- Airworthiness: Experimental, amateur built
- Airworthiness date: February 23, 2026
- Certificate issued: June 9, 2025
- Expires: June 30, 2032
- Mode S code: A6EC3D
- Registered owner: [T Rock Air LLC](https://openairdocs.org/faa-owner/T%20ROCK%20AIR%20LLC)
- Location: [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell)
- Owner type: LLC
- Owner's area on the map: 48.2306° N, 114.4033° W: Placed by OpenAirDocs at the center of ZIP code 59901, within about 12 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=545TW
- Page: https://openairdocs.org/aircraft/N545TW

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 (T Rock Air AL-18)

None in force.

### Matched by engine (Rotax 916 1S3 A)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N545TW.

## FAA accident and incident reports

None matched to N545TW.

## 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 T Rock Air AL-18 aircraft: https://openairdocs.org/model/t-rock-air-al-18/aircraft.md
- The Rotax 916 1S3 A engine: https://openairdocs.org/engine/rotax-916-1s3-a.md

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