FAA Aircraft Registry · Live Lookup · As of Apr 28, 2026

N945SA — 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

KNOWLES STEVEN R

Registrant Type

Individual

Location

KATY, TX

Status

Registration Valid

Certificate Issued

Jan 28, 2016

Airworthiness Date

Aug 4, 2003

Registration Expires

Jan 31, 2029

Last Action

Jul 7, 2023

Aircraft

Serial Number

172S9454

Year Manufactured

—

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)

AD214C

Type History

Cessna 172S type page → — 3,071 registered · 997 NTSB records · 48 airworthiness directives

Live position via ICAO24 AD214C

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