- Registered owner
- Cosmer Gary M
- Location
- Oregon City, OR
- Owner type
- Individual
- Serial number
- 10230352
- Year built
- 2025
- Type
- Fixed wing single engine
- Engine
- Reciprocating
- Airworthiness
- Experimental, amateur built
- Airworthiness date
- June 5, 2026
- Certificate issued
- July 9, 2025
- Expires
- July 31, 2032
- Mode S code
- A10391
- Kit
- Rans Designs Inc S-21 OUTBOUND
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Rotax 915 IS model are included below.
On this page
Airworthiness directives that may apply · 2
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 2025 | 2 |
|---|---|
| 2026 | 1 |
Engine · Rotax 915 IS series
AD 2026-04-02Turbine Engine Reduction GearAD 2025-15-03Reciprocating Engine Oil SystemSuperseded and historical ADs · 1
Information bulletins that may apply
Advisory, not mandatory.
No bulletins matched this aircraft’s models
NTSB investigations
No NTSB investigations matched to N1645Matched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Cosmer Gary M S-21 OUTBOUND aircraft
FAA incident reports
No FAA accident or incident reports matched to N1645Matched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Cosmer Gary M S-21 OUTBOUND aircraft
Reports on N1645 not matched to an aircraft · 3
They name N1645, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.
Incident 19870207026819IBoeing 727 · Boston, MAStabilizer became inoperative en route. Safe landing. Lubricated jack screw.Incident 19830705061709IBoeing 727295 · Charlotte, NCLeft main gear broke through blacktop during taxi. Passengers were removed. City dug gear out.Incident 19810412024129IBoeing 727295 · Jacksonville, FLMade emergency descent and landing due to complete loss of pressurization control.
Service difficulty reports
No reports matched to N1645General aviation reporting is voluntary. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Reports on Cosmer Gary M S-21 OUTBOUND aircraft
STCs that may be installed · 1
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.