Single-engine turboprop

N4551M

1991 Air Tractor AT-502

Registered No accidents on file
Built
1991
Serial
502-0133
Class
Single-engine turboprop
Engines
Pratt & Whitney PT6A series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Rock Falls, IL
Registration record

N4551M on the FAA register

Type
1991 Air Tractor AT-502
Serial
502-0133
Engines
Pratt & Whitney PT6A series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Rock Falls, IL
Certificate issued
2025-06-10
Airworthiness date
1991-03-19
Registration expires
2032-06-30
Airworthiness class
Restricted
Mode S (hex)
A58736
Mode S (octal)
51303466
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2032-06-30
    Registration expires (renewal due).
  • 2025-06-10
    Certificate of registration issued as N4551M to the current registrant.
  • 1991-03-19
    Airworthiness date on the current FAA record (restricted category).
  • 1949-06-06
    N4551M previously assigned to a Piper PA-11 (s/n 11-51); cancelled.
Overview

About N4551M

N4551M is a 1991 Air Tractor AT-502, serial number 502-0133. It is registered to an individual in Rock Falls, Illinois. The current certificate of registration was issued on June 10, 2025 and expires on June 30, 2032.

The FAA aircraft reference file describes the type as a single-engine turboprop, one Pratt & Whitney PT6A series engine and 1 seats. Its airworthiness certificate is restricted category, dated March 19, 1991.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N4551M.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N4551M.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

Same model

More Air Tractor AT-502 aircraft

All 78 Air Tractor AT-502 registrations →
Same state

Other aircraft registered in Illinois

All 8,055 aircraft registered in Illinois →
Similar aircraft

Other single-engine turboprops on the register

More from Air Tractor

Air Tractor models on the register

Own N4551M?

Get a free valuation, digitize the logbooks, or list it on fyiAero.

Free valuation Logbook transcription

Browse: Aircraft registered in Illinois· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.