# N19544: Sioux COUPE 90

- Status: Valid registration
- Airframe: [Sioux COUPE 90](https://openairdocs.org/model/sioux-coupe-90) (registry code 8250104, 2 seats)
- Data sheets: [TCDS ATC 331](https://openairdocs.org/tcds/ATC%20331) (Sioux Aircraft Corporation) (OpenAirDocs)
- Serial number: L-306
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Certificate issued: September 25, 2008
- Expires: May 31, 2028
- Mode S code: A17DBF
- Registered owner: [Sioux City Public Museum](https://openairdocs.org/faa-owner/SIOUX%20CITY%20PUBLIC%20MUSEUM)
- Location: [Sioux City, IA](https://openairdocs.org/faa-place/IA/Sioux%20City)
- Owner type: Corporation
- Owner's area on the map: 42.4937° N, 96.3942° W: Placed by OpenAirDocs at the center of ZIP code 51101, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=19544
- Page: https://openairdocs.org/aircraft/N19544

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 (Sioux COUPE 90)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N19544.

## FAA accident and incident reports

None matched to N19544.

## Reports on N19544 not matched to an aircraft (1)

They name N19544, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19790227008479I](https://openairdocs.org/incident/19790227008479I), Feb 27, 1979: Beech 36BEECH (N19544), Novato, CA, Minor damage. Total electrical failure after takeoff. Cranked gear up unknowingly with emergency system.

## 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 N19544 not matched to an aircraft (1)

They name N19544, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR C2XA08ON123](https://openairdocs.org/sdr/C2XA08ON123), May 10, 2008: RELAY. BLOWN. FLT 0119 - ONT - FLIGHT CREW REPORTED BAGGAGE SMOKE DETECTOR WILL NOT TEST. MX REMOVED AND REPLACED RELAY K0630 OPERATIONALLY CHECKED SATISFACTORY AIRCRAFT WAS 

## STCs that may be installed (OpenAirDocs) (1)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Sioux COUPE 90)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC

## Related

- Other Sioux COUPE 90 aircraft: https://openairdocs.org/model/sioux-coupe-90/aircraft.md

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