Diamond Aircraft DA 42 NG
N399SK is a Diamond Aircraft DA 42 NG, a fixed-wing airplane with more than one motor with a piston engine, built in 2025. It has 4 seats. It is registered to Alf Ix LLC, an LLC in Chicago, Illinois. The registration is valid: it was issued on January 23, 2026 and expires on January 31, 2033. It holds a standard airworthiness certificate for normal, dated December 8, 2025.
Diamond Aircraft: eDA40 electric trainer, Austria
Aircraft
- Maker
- Diamond Aircraft (Austria)FAA spelling: DIAMOND AIRCRAFT IND GMBH
- Model
- DA 42 NG
- Serial number
- 42.N608
- Type
- Fixed-wing, multi-engine
- Power
- Piston (reciprocating), 2 motors · Austro E4 SERIES · 168 hp
- Seats
- 4
- Year built
- 2025
- Transponder code
- A4A5D2 (octal 51122722)
Registration
- Status
- Valid registration
- Certificate issued
- January 23, 2026
- Expires
- January 31, 2033
- Last FAA action
- January 23, 2026
- Airworthiness
- Standard · Normal · December 8, 2025
- FAA region
- Great Lakes
- FAA record id
- 01529408
Owner as the FAA publishes it
- Name
- Alf Ix LLC
- Type
- LLC
- Address
- 70 W Madison St Ste 2200
Chicago, IL 60602-4383
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data