N51UD — 2017 Textron Aviation Inc 172S
Active registrationChecked against FAA & NTSB records · as of Nov 3, 2026
N51UD has no NTSB accident records on file. Registration data compiled from public FAA records as of Nov 3, 2026.
Aircraft record
- Serial number
- 172S12088
- Manufacturer
- Textron Aviation Inc
- Model
- 172S
- Year
- 2017
- Category
- Fixed wing single-engine
- Engine
- Lycoming Io-360-l2a
- Registration
- Active
- Registered to
- Alf Ix Llc — Chicago, IL
Accident & incident history
No NTSB accident records on file.
Registration timeline
Ownership and registration events for this airframe (the 2017 Textron Aviation Inc 172S).
- Nov 3, 2022registered — Alf Ix Llc
- Nov 3, 2022registered — Alf Ix Llc
- Aug 26, 2026deregistered
Earlier aircraft on this N-number
The tail number N51UD was previously assigned to a different aircraft. A registration number can be reused across unrelated airframes over decades — these are not the 2017 Textron Aviation Inc 172S above.
- until Mar 2, 1999Richardson Roger MUSTANG (s/n 001)
Frequently asked
- Has N51UD been in an accident?
- No NTSB accident records are on file for N51UD.
- What kind of aircraft is N51UD?
- N51UD is a 2017 Textron Aviation Inc 172S (fixed wing single-engine), serial number 172S12088.
- Who is N51UD registered to?
- N51UD is registered to Alf Ix Llc of Chicago, IL. Registration status: active.
The full N51UD 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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