# N918JS: 1994 Sims Jeffery B SIMS-KOLB TWINSTAR

- Status: Valid registration
- Airframe: [Sims Jeffery B SIMS-KOLB TWINSTAR](https://openairdocs.org/model/sims-jeffery-b-sims-kolb-twinstar) (registry code 05625DW, 2 seats)
- Engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050)
- Serial number: JS-001
- Year built: 1994
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: June 8, 1994
- Certificate issued: May 12, 1994
- Expires: April 30, 2030
- Mode S code: ACB53C
- Registered owner: [Sims Jeffery B](https://openairdocs.org/faa-owner/SIMS%20JEFFERY%20B)
- Location: [Williamsport, PA](https://openairdocs.org/faa-place/PA/Williamsport)
- Owner type: Individual
- Owner's area on the map: 41.3450° N, 76.8572° W: Placed by OpenAirDocs at the center of ZIP code 17701, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=918JS
- Page: https://openairdocs.org/aircraft/N918JS

From the FAA registry file of October 22, 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 (Sims Jeffery B SIMS-KOLB TWINSTAR)

None in force.

### Matched by engine (Bombardier ROTAX (ALL))

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N918JS.

## NTSB investigations on N918JS 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 CHI83FA068](https://openairdocs.org/ntsb/CHI83FA068), Dec 4, 1982: CGS Hawk (N918JS), Dewitt, MI, destroyed, 1 fatal

## FAA accident and incident reports

None matched to N918JS.

## Reports on N918JS not matched to an aircraft (1)

They name N918JS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Accident 19821204062419A](https://openairdocs.org/incident/19821204062419A), Dec 4, 1982: Amtr HAWK (N918JS), Dewitt, MI, Destroyed. Aircraft crashed on first flight due to inability to gain airspeed and altitude.

## 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 N918JS

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N918JS before.

- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N918JS-undated): Shaw John V CGS HAWK, S/N H114C. Triennial form not returned

## Related

- Other Sims Jeffery B SIMS-KOLB TWINSTAR aircraft: https://openairdocs.org/model/sims-jeffery-b-sims-kolb-twinstar/aircraft.md
- The Bombardier ROTAX (ALL) engine: https://openairdocs.org/engine/bombardier-rotax-all.md

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