# N505M: Ryan B-5

- Status: Valid registration
- Airframe: [Ryan B-5](https://openairdocs.org/model/ryan-b-5) (registry code 7840202, 6 seats)
- Data sheets: [TCDS ATC 142](https://openairdocs.org/tcds/ATC%20142) (Ryan Aircraft Corporation) (OpenAirDocs)
- Serial number: 228
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Certificate issued: December 6, 2018
- Expires: December 31, 2028
- Mode S code: A64D96
- Registered owner: [Hirtle Alan L](https://openairdocs.org/faa-owner/HIRTLE%20ALAN%20L)
- Location: [Oro Valley, AZ](https://openairdocs.org/faa-place/AZ/Oro%20Valley)
- Owner type: Individual
- Owner's area on the map: 32.4684° N, 110.9815° W: Placed by OpenAirDocs at the center of ZIP code 85755, 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=505M
- Page: https://openairdocs.org/aircraft/N505M

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 B-5)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N505M.

## FAA accident and incident reports

None matched to N505M.

## 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) (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 (Ryan B-5)

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

## Earlier aircraft with N505M

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N505M before.

- [Cancelled 1930-11-01](https://openairdocs.org/deregistered/N505M-1930-11-01): Nicholas Beazley NB-3, S/N 34, built 1929. Owner: [Balke John E](https://openairdocs.org/faa-owner/BALKE%20JOHN%20E)

## Related

- Other Ryan B-5 aircraft: https://openairdocs.org/model/ryan-b-5/aircraft.md

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