# N1240S: Cook Grant A ONEX

- Status: Valid registration
- Airframe: [Cook Grant A ONEX](https://openairdocs.org/model/cook-grant-a-onex) (registry code 056364F, 1 seats)
- Serial number: 0NX0124
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Sonex Aircraft LLC ONEX
- Certificate issued: December 5, 2017
- Expires: December 31, 2027
- Mode S code: A064F7
- Registered owners: [Cook Grant A](https://openairdocs.org/faa-owner/COOK%20GRANT%20A), [Cook Barbara L](https://openairdocs.org/faa-owner/COOK%20BARBARA%20L)
- Location: [Ann Arbor, MI](https://openairdocs.org/faa-place/MI/Ann%20Arbor)
- Owner type: Co-owned
- Owner's area on the map: 42.3276° N, 83.6964° W: Placed by OpenAirDocs at the center of ZIP code 48105, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1240S
- Page: https://openairdocs.org/aircraft/N1240S

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 (Cook Grant A ONEX)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N1240S.

## FAA accident and incident reports

None matched to N1240S.

## 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 N1240S

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N1240S before.

- [Cancelled 2006-11-06](https://openairdocs.org/deregistered/N1240S-2006-11-06): Cessna 172S, S/N 172S10305, built 2006. Exported to New Zealand. Owner: [Cessna Aircraft Company](https://openairdocs.org/faa-owner/CESSNA%20AIRCRAFT%20COMPANY), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita)
- [Cancelled 1989-03-02](https://openairdocs.org/deregistered/N1240S-1989-03-02): Schweizer SGS 2-33A, S/N 222. Triennial form not returned

## Related

- Other Cook Grant A ONEX aircraft: https://openairdocs.org/model/cook-grant-a-onex/aircraft.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.