# Cosmos PHASE II

- Type: Aircraft model (FAA registry)
- Registry code: 059003U
- Manufacturer (registry): COSMOS
- Model: PHASE II
- Aircraft type: Weight-shift-control
- Engines: 1 · 2 cycle
- Seats: 2
- Weight class: Up to 12,499 lb
- Certification: Light sport
- Registered aircraft: 10
- Page: https://openairdocs.org/model/cosmos-phase-ii

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (10)

- [N143SE](https://openairdocs.org/aircraft/N143SE): [Harter Chris D](https://openairdocs.org/faa-owner/HARTER%20CHRIS%20D), [San Mateo, CA](https://openairdocs.org/faa-place/CA/San%20Mateo), built 2000, S/N B21445
- [N145W](https://openairdocs.org/aircraft/N145W): [Sumner Robert J](https://openairdocs.org/faa-owner/SUMNER%20ROBERT%20J), [La Pine, OR](https://openairdocs.org/faa-place/OR/La%20Pine), built 2003, S/N B0380
- [N2018Y](https://openairdocs.org/aircraft/N2018Y): [Tatkovsky John](https://openairdocs.org/faa-owner/TATKOVSKY%20JOHN), [New Tripoli, PA](https://openairdocs.org/faa-place/PA/New%20Tripoli), built 1996, S/N 21243
- [N2614T](https://openairdocs.org/aircraft/N2614T): [Bowman Doug W DBA](https://openairdocs.org/faa-owner/BOWMAN%20DOUG%20W%20DBA), [Pasco, WA](https://openairdocs.org/faa-place/WA/Pasco), built 1995, S/N RVHOM04
- [N2615T](https://openairdocs.org/aircraft/N2615T): [Penrod James L](https://openairdocs.org/faa-owner/PENROD%20JAMES%20L), [Farmington, NM](https://openairdocs.org/faa-place/NM/Farmington), S/N BJPOM04
- [N3726D](https://openairdocs.org/aircraft/N3726D): [Pegasus Flight Systems LLC](https://openairdocs.org/faa-owner/PEGASUS%20FLIGHT%20SYSTEMS%20LLC), [Mount Dora, FL](https://openairdocs.org/faa-place/FL/Mount%20Dora), built 2007, S/N 21432
- [N4476A](https://openairdocs.org/aircraft/N4476A): [Lopez Hector R](https://openairdocs.org/faa-owner/LOPEZ%20HECTOR%20R), [Maricopa, AZ](https://openairdocs.org/faa-place/AZ/Maricopa), built 2001, S/N 21499
- [N5607M](https://openairdocs.org/aircraft/N5607M): [Dutton Bradley E](https://openairdocs.org/faa-owner/DUTTON%20BRADLEY%20E), [Navarre, OH](https://openairdocs.org/faa-place/OH/Navarre), S/N TTCPII
- [N630PH](https://openairdocs.org/aircraft/N630PH): [Owens Ralph P](https://openairdocs.org/faa-owner/OWENS%20RALPH%20P), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 2001, S/N 21443
- [N7096T](https://openairdocs.org/aircraft/N7096T): [Bowers Gary](https://openairdocs.org/faa-owner/BOWERS%20GARY), [Mount Airy, NC](https://openairdocs.org/faa-place/NC/Mount%20Airy), built 1998, S/N B21274

## NTSB investigations (3)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR26LA175](https://openairdocs.org/ntsb/WPR26LA175), May 2, 2026: Cosmos Phase II (N145W), Prineville, OR, substantial damage. Probable cause: The pilot's inability to maintain directional control during the landing roll due to a flat tire.
- [NTSB WPR23LA051](https://openairdocs.org/ntsb/WPR23LA051), Nov 26, 2022: Cosmos Phase II (N254DW), Lake Havasu, AZ, substantial damage. Probable cause: The pilot’s inadequate preflight inspection and fuel planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent landing on…
- [NTSB WPR10LA462](https://openairdocs.org/ntsb/WPR10LA462), Sep 20, 2010: Cosmos Phase II (N56078), El Mirage, CA, substantial damage, 1 fatal. Probable cause: The pilot's improper preflight and starting procedures, which resulted in an inadvertent takeoff with the gust lock still installed.

## FAA accident and incident reports (3)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20260502010689A](https://openairdocs.org/incident/20260502010689A), May 2, 2026: Cosmos PHASE II (N145W), Prineville, OR, Substantial damage. During landing and near the ground, with ASOS reported calm winds, the pilot stated that he seemed to be experiencing a tail wind. He noticed that we was about…
- [Accident 20221126020679A](https://openairdocs.org/incident/20221126020679A), Nov 26, 2022: Cosmos PHASE II (N254DW), Lake Havasu, AZ, Substantial damage. Lake Havasu City, AZ: [privacy data omitted]cosmo, crashed due to unknown circumstances off the edge of highway 95 at milepost 166. **update: pilot reported…
- [Accident 20100920045919A](https://openairdocs.org/incident/20100920045919A), Sep 20, 2010: Cosmos PHASE II (N56078), El Mirage, CA, Substantial damage, 1 fatal. Aircraft crashed on dirt strip approximately 1 mile northwest of El Mirage field, CA. Aircraft departed perpendicular to dirt strip runway at approximately…

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [King Cosmos PHASE II](https://openairdocs.org/model/king-cosmos-phase-ii): 0 registered aircraft, registry code 05903EP

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