# N5210: 2025 Sullivan Michael A S-21 OUTBOUND

- Status: Valid registration
- Airframe: [Sullivan Michael A S-21 OUTBOUND](https://openairdocs.org/model/sullivan-michael-a-s-21-outbound) (registry code 05642CX, 2 seats)
- Engine: [Continental IOX340 series](https://openairdocs.org/engine/continental-iox340-series) (registry code 17490)
- Serial number: 001
- Year built: 2025
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Rans Designs Inc S-21 OUTBOUND
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 21, 2025
- Certificate issued: March 4, 2024
- Expires: March 31, 2031
- Mode S code: A68EFD
- Registered owner: [Sullivan Michael A](https://openairdocs.org/faa-owner/SULLIVAN%20MICHAEL%20A)
- Location: [Cincinnati, OH](https://openairdocs.org/faa-place/OH/Cincinnati)
- Owner type: Individual
- Owner's area on the map: 39.2167° N, 84.6611° W: Placed by OpenAirDocs at the center of ZIP code 45247, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5210
- Page: https://openairdocs.org/aircraft/N5210

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. The registry lists only the engine series, so ADs for every Continental IOX340 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Sullivan Michael A S-21 OUTBOUND)

None in force.

### Matched by engine (Continental IOX340 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N5210.

## FAA accident and incident reports

None matched to N5210.

## 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.

## Service difficulty reports on N5210 not matched to an aircraft (1)

They name N5210, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR GTIA2025050138893](https://openairdocs.org/sdr/GTIA2025050138893), Apr 30, 2025: DIAPHRAGM. DAMAGED. R2 DOOR ASSIST BOTTLE REQUIRES DIAPHRAGM R&R DUE TO SLIDE DEPLOYMENT-R&R R2 DOOR ASSIST BOTTLE DIAPHRAGM IAW AMM 52-10-00-610-001-A

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N5210

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N5210 before.

- [Cancelled 2013-04-02](https://openairdocs.org/deregistered/N5210-2013-04-02): Robinson SCORPION TOO, S/N 334772, built 1972. Registration expired, pending cancellation. Owner: [Blasberg Don A](https://openairdocs.org/faa-owner/BLASBERG%20DON%20A), [Tripoli, IA](https://openairdocs.org/faa-place/IA/Tripoli)
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N5210-undated): Ryan B1, S/N 98. Exported to Mexico. Owner: [B F Mahoney Aircraft Corp](https://openairdocs.org/faa-owner/B%20F%20MAHONEY%20AIRCRAFT%20CORP)

## Related

- Other Sullivan Michael A S-21 OUTBOUND aircraft: https://openairdocs.org/model/sullivan-michael-a-s-21-outbound/aircraft.md
- The Continental IOX340 series engine: https://openairdocs.org/engine/continental-iox340-series.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.