# Cosmos PHASE III

- Type: Aircraft model (FAA registry)
- Registry code: 05901YT
- Manufacturer (registry): COSMOS
- Model: PHASE III
- Aircraft type: Weight-shift-control
- Engines: 1 · 4 cycle
- Seats: 2
- Weight class: Up to 12,499 lb
- Certification: Light sport
- Registered aircraft: 3
- Page: https://openairdocs.org/model/cosmos-phase-iii

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 (3)

- [N3510Y](https://openairdocs.org/aircraft/N3510Y): [Scenic Mountain Flights LLC](https://openairdocs.org/faa-owner/SCENIC%20MOUNTAIN%20FLIGHTS%20LLC), [Winter Park, CO](https://openairdocs.org/faa-place/CO/Winter%20Park), built 2002, S/N C1004
- [N518SU](https://openairdocs.org/aircraft/N518SU): [Cress Mark C](https://openairdocs.org/faa-owner/CRESS%20MARK%20C), [Chandler, AZ](https://openairdocs.org/faa-place/AZ/Chandler), S/N B21559
- [N70HK](https://openairdocs.org/aircraft/N70HK): [Morrison Dale C](https://openairdocs.org/faa-owner/MORRISON%20DALE%20C), [Eloy, AZ](https://openairdocs.org/faa-place/AZ/Eloy), built 2006, S/N 1055

## NTSB investigations (1)

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 WPR18LA132](https://openairdocs.org/ntsb/WPR18LA132), May 1, 2018: Cosmos Phase III (N6466), Fernandina Beach, FL, substantial damage. Probable cause: The student pilot's failure to maintain aircraft control and the flight instructor’s failure to adequately monitor the student pilot before aircraft control was lost at a low altitude.

## FAA accident and incident reports (1)

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 20180501004429A](https://openairdocs.org/incident/20180501004429A), May 1, 2018: Cosmos PHASE III (N6466), Fernandina Beac, FL, Minor damage. Pilot stated that the second pilot was being given instructional training and that he (second pilot) was on the controls during takeoff. At about 700 feet the…

## The same model under other registry codes

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

- [Cosmos D.M. PHASE III](https://openairdocs.org/model/cosmos-d-m-phase-iii): 1 registered aircraft, registry code 05902OI

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