N518SU — Cosmos PHASE III
Active registrationChecked against FAA & NTSB records · as of Sep 12, 2026
N518SU has no NTSB accident records on file. Registration data compiled from public FAA records as of Sep 12, 2026.
Aircraft record
- Serial number
- B21559
- Manufacturer
- Cosmos
- Model
- PHASE III
- Category
- Weight-shift-control
- Engine
- Rotax 912uls Series
- Registration
- Active
- Registered to
- Cress Mark C — Chandler, AZ
Accident & incident history
No NTSB accident records on file.
Registration timeline
Ownership and registration events for this airframe (the Cosmos PHASE III).
- Apr 14, 2021registered — Cress Mark C
- Apr 14, 2021registered — Cress Mark C
- Aug 26, 2026deregistered
Frequently asked
- Has N518SU been in an accident?
- No NTSB accident records are on file for N518SU.
- What kind of aircraft is N518SU?
- N518SU is a Cosmos PHASE III (weight-shift-control), serial number B21559.
- Who is N518SU registered to?
- N518SU is registered to Cress Mark C of Chandler, AZ. Registration status: active.
The full N518SU report
$12 $29 launch pricing
- Full NTSB investigation narratives — the complete text, not just the cause line
- Pre-buy question list generated from this aircraft’s actual records
- Complete registration & deregistration timeline, print-ready
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