Single-engine turboprop

N4509S

1990 Air Tractor AT-502

Registered 1 NTSB/FAA record
Built
1990
Serial
502-0088
Class
Single-engine turboprop
Engines
Pratt & Whitney Canada PT6A-60A
Status
Current as of October 2026
Registered owner
Tall Towers Ag Service Inc (Corporation)
Based
Page, ND
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Registration record

N4509S on the FAA register

Type
1990 Air Tractor AT-502
Serial
502-0088
Engines
Pratt & Whitney Canada PT6A-60A
Registered owner
Tall Towers Ag Service Inc
Page, ND
Certificate issued
2023-08-02
Airworthiness date
1990-03-20
Registration expires
2030-08-31
Airworthiness class
Restricted
Mode S (hex)
A575C0
Mode S (octal)
51272700
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2030-08-31
    Registration expires (renewal due).
  • 2023-08-02
    Certificate of registration issued as N4509S.
  • 2018-07-10
    Accident at De Land, IL; damage: substantial.
  • 1990-03-20
    Airworthiness date on the current FAA record (restricted category).
Overview

About N4509S

N4509S is a 1990 Air Tractor AT-502, serial number 502-0088. The FAA register lists Tall Towers Ag Service Inc as the registrant in Page, North Dakota. The current certificate of registration was issued on August 2, 2023 and expires on August 31, 2030.

The FAA aircraft reference file describes the type as a single-engine turboprop, one Pratt & Whitney Canada PT6A-60A engine and 1 seats. Its airworthiness certificate is restricted category, dated March 20, 1990.

N4509S has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2018-07-10 Accident · De Land, IL Damage: Substantial NTSB · GAA18CA415
Reported aircraft: Air Tractor AT 502
Probable cause: The pilot s selection of unsuitable terrain for landing in crosswind conditions, which resulted in the airplane inadvertently becoming airborne and a subsequent hard landing and loss of directional control.

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

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Browse: Aircraft registered in North Dakota· 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.