# N1550: Ryan B1

- Status: Valid registration
- Airframe: [Ryan B1](https://openairdocs.org/model/ryan-b1) (registry code 7840102, 5 seats)
- Data sheets: [TCDS ATC 25](https://openairdocs.org/tcds/ATC%2025) (Ryan Aircraft Corporation) (OpenAirDocs)
- Serial number: 42
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Certificate issued: August 30, 2018
- Expires: August 31, 2028
- Mode S code: A0DF1A
- Registered owner: [Gifford Scott A](https://openairdocs.org/faa-owner/GIFFORD%20SCOTT%20A)
- Location: [Mcminnville, OR](https://openairdocs.org/faa-place/OR/Mcminnville)
- Owner type: Individual
- Owner's area on the map: 45.2117° N, 123.2817° W: Placed by OpenAirDocs at the center of ZIP code 97128, 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=1550
- Page: https://openairdocs.org/aircraft/N1550

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 (Ryan B1)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N1550.

## FAA accident and incident reports

None matched to N1550.

## 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) (4)

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 (Ryan B1)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

## Earlier aircraft with N1550

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N1550 before.

- [Cancelled 1981-06-19](https://openairdocs.org/deregistered/N1550-1981-06-19): British BAC 1-11 203/AE, S/N 044. Administratively canceled. Owner: [Allegheny Airlines Inc](https://openairdocs.org/faa-owner/ALLEGHENY%20AIRLINES%20INC), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)

## Related

- Other Ryan B1 aircraft: https://openairdocs.org/model/ryan-b1/aircraft.md

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