FAA Aircraft Registry · Live Lookup · As of Apr 28, 2026
N51UD — Cessna 172S
Rendered live from the FAA Aircraft Registry (refreshed weekly). This tail has no NTSB events or airworthiness directives indexed against it — type-level history is on the type page below.
Registration
Registrant
ALF IX LLC
Registrant Type
LLC
Location
CHICAGO, IL
Status
Registration Valid
Certificate Issued
Nov 3, 2022
Airworthiness Date
Oct 30, 2017
Registration Expires
Nov 30, 2029
Last Action
Sep 15, 2023
Aircraft
Serial Number
172S12088
Year Manufactured
2017
Aircraft Type
Fixed Wing Single Engine
Certification
Standard (+2 flags)
Engine
LYCOMING IO-360-L2A
Engines / Seats
1 / 4
Weight Class
CLASS 1
Mode S (Hex)
A660DC
Type History
Cessna 172S type page → — 3,071 registered · 997 NTSB records · 48 airworthiness directives
Live position via ICAO24 A660DC
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