# N669M: 1967 Soko GALEB G2-A

- Status: Valid registration
- Airframe: [Soko GALEB G2-A](https://openairdocs.org/model/soko-galeb-g2-a) (registry code 056184K, 2 seats)
- Engine: [Rolls-Royce VIPER MK522](https://openairdocs.org/engine/rolls-royce-viper-mk522) (registry code 54552)
- Data sheets: [TCDS E3EU](https://openairdocs.org/tcds/E3EU) (Rolls-Royce Deutschland Ltd & Co KG) (OpenAirDocs)
- Serial number: 23172
- Year built: 1967
- Type: Fixed wing single engine
- Engine type: Turbo-jet
- Airworthiness: Experimental, exhibition
- Airworthiness date: April 18, 1994
- Certificate issued: August 21, 2023
- Expires: August 31, 2030
- Mode S code: A8D6BB
- Owner type: Individual
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=669M
- Page: https://openairdocs.org/aircraft/N669M

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): 5 in force

### Matched by airframe (Soko GALEB G2-A)

None in force.

### Matched by engine (Rolls-Royce VIPER MK522)

- [AD 2018-17-08](https://openairdocs.org/ad/2018-17-08): Compressor Section · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522 and Viper Mk. 601-22. Effective Sep 25, 2018
- [AD 98-26-07](https://openairdocs.org/ad/98-26-07): Fuel Pumps · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521 and Viper Mk. 522. Effective Feb 16, 1999
- [AD 98-25-14](https://openairdocs.org/ad/98-25-14): Barometric Flow Control Unit · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522, Viper Mk. 526 and 1 more. Effective Feb 12, 1999
- [AD 92-10-07](https://openairdocs.org/ad/92-10-07): High Pressure Compressor (HPC) Rotor Disks · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522 and Viper Mk. 601-22. Effective Sep 21, 1992
- [AD 77-13-20](https://openairdocs.org/ad/77-13-20): Fuel Shutoff Valve · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 522 and Viper Mk. 601-22. Effective Aug 1, 1977

### Historical (superseded or no longer in force)

- [AD 2016-03-03](https://openairdocs.org/ad/2016-03-03) (historical): Life-limited parts · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 521, Viper Mk. 522 and Viper Mk. 601-22. Effective Apr 14, 2016

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N669M.

## FAA accident and incident reports

None matched to N669M.

## 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.

## Earlier aircraft with N669M

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N669M before.

- [Cancelled 1973-10-25](https://openairdocs.org/deregistered/N669M-1973-10-25): Lockheed 18-56, S/N 18-2591. Owner: [Davis Elynas Eugene](https://openairdocs.org/faa-owner/DAVIS%20ELYNAS%20EUGENE), [Springdale, AR](https://openairdocs.org/faa-place/AR/Springdale)
- [Cancelled 1948-03-08](https://openairdocs.org/deregistered/N669M-1948-03-08): Consolidated COMMODORE 16 TYPE 1, S/N 13. Owner: [Pan American Airways Inc](https://openairdocs.org/faa-owner/PAN%20AMERICAN%20AIRWAYS%20INC), [New York, NY](https://openairdocs.org/faa-place/NY/New%20York)

## Related

- Other Soko GALEB G2-A aircraft: https://openairdocs.org/model/soko-galeb-g2-a/aircraft.md
- The Rolls-Royce VIPER MK522 engine: https://openairdocs.org/engine/rolls-royce-viper-mk522.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.