# N99AA: 1994 Unger Daniel S PITTS S-1-S

- Status: Valid registration
- Airframe: [Unger Daniel S PITTS S-1-S](https://openairdocs.org/model/unger-daniel-s-pitts-s-1-s) (registry code 05623WX, 1 seats)
- Engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511)
- Serial number: 9401
- Year built: 1994
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 28, 1994
- Certificate issued: March 2, 2015
- Expires: March 31, 2028
- Mode S code: ADD04B
- Registered owner: [Afc Inc](https://openairdocs.org/faa-owner/AFC%20INC)
- Location: [Lake Elmo, MN](https://openairdocs.org/faa-place/MN/Lake%20Elmo)
- Owner type: Corporation
- Owner's area on the map: 44.9883° N, 92.8924° W: Placed by OpenAirDocs at the center of ZIP code 55042, 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=99AA
- Page: https://openairdocs.org/aircraft/N99AA

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 (Unger Daniel S PITTS S-1-S)

None in force.

### Matched by engine (Lycoming I0360 SER A&C)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N99AA.

## FAA accident and incident reports

None matched to N99AA.

## Reports on N99AA not matched to an aircraft (3)

They name N99AA, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19880211007239I](https://openairdocs.org/incident/19880211007239I), Feb 11, 1988: Lear 24D (N99AA), St Louis, MO, Minor damage. All four main tires blew out on landing rollout. Found wheels were locked by ice and snow.
- [Incident 19861111072959I](https://openairdocs.org/incident/19861111072959I), Nov 11, 1986: Lear 24D (N99AA), Ypsilanti, MI. Deviated from assigned heading and caused a loss of separation.
- [Incident 19781128024409I](https://openairdocs.org/incident/19781128024409I), Nov 28, 1978: Rkwell NA265 (N99AA), Erlanger, KY. Fire warning light for left engine came on in flight. Retarded power and landed without incident.

## 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 Unger Daniel S PITTS S-1-S aircraft: https://openairdocs.org/model/unger-daniel-s-pitts-s-1-s/aircraft.md
- The Lycoming I0360 SER A&C engine: https://openairdocs.org/engine/lycoming-i0360-ser-a-c.md

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