Single-engine piston

N4004K

1978 Ayres S2R-600

Registered 1 NTSB/FAA record
Built
1978
Serial
2488R
Class
Single-engine piston
Engines
Airesearch TPE331 series
Status
Current as of October 2026
Registered owner
Heritage Ag LLC (LLC)
Based
Lakeview, MI
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Registration record

N4004K on the FAA register

Type
1978 Ayres S2R-600
Serial
2488R
Engines
Airesearch TPE331 series
Registered owner
Heritage Ag LLC
Lakeview, MI
Certificate issued
2021-10-14
Airworthiness date
1979-03-09
Registration expires
2028-10-31
Airworthiness class
Restricted
Mode S (hex)
A4AF8F
Mode S (octal)
51127617
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2028-10-31
    Registration expires (renewal due).
  • 2024-06-20
    Accident at Stanwood, MI; damage: substantial.
  • 2021-10-14
    Certificate of registration issued as N4004K to the current registrant.
  • 1979-03-09
    Airworthiness date on the current FAA record (restricted category).
  • 1978
    Manufactured (1978).
  • 1973-05-21
    N4004K previously assigned to a North American Navion (s/n NAV-4-1004); cancelled.
Overview

About N4004K

N4004K is a 1978 Ayres S2R-600, serial number 2488R. The FAA register lists Heritage Ag LLC as the registrant in Lakeview, Michigan. The current certificate of registration was issued on October 14, 2021 and expires on October 31, 2028.

The FAA aircraft reference file describes the type as a single-engine piston, one Airesearch TPE331 series engine and 1 seats. Its airworthiness certificate is restricted category, dated March 9, 1979.

N4004K has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2024-06-20 Accident · Stanwood, MI Damage: Substantial NTSB · CEN24LA318
Reported aircraft: Ayres S2R
Probable cause: The pilot s failure to maintain terrain clearance during a low-level aerial application flight, which resulted in impact with terrain and a subsequent forced landing. Contributing to the accident was the location of the spray boom pressure gauge, which required the pilot to divert his attention away from the airplane s flight path, and the operator s decision to locate the spray boom pressure gauge outside of the cockpit.
NTSB report ↗

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 Michigan· 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.