Single-engine turboprop

N4239X

1974 Rockwell International S-2R

Registered No accidents on file
Built
1974
Serial
2012R
Class
Single-engine turboprop
Engines
Airesearch TPE331 series
Status
Current as of October 2026
Registered owner
Mountain Air Spray Co (Corporation)
Based
Craig, CO
Registration record

N4239X on the FAA register

Type
1974 Rockwell International S-2R
Serial
2012R
Engines
Airesearch TPE331 series
Registered owner
Mountain Air Spray Co
Craig, CO
Certificate issued
2021-02-19
Airworthiness date
1995-02-23
Registration expires
2028-02-29
Airworthiness class
Restricted
Mode S (hex)
A50A6D
Mode S (octal)
51205155
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2028-02-29
    Registration expires (renewal due).
  • 2021-02-19
    Certificate of registration issued as N4239X.
  • 1995-02-23
    Airworthiness date on the current FAA record (restricted category).
  • 1974
    Manufactured (1974).
Overview

About N4239X

N4239X is a 1974 Rockwell International S-2R, serial number 2012R. The FAA register lists Mountain Air Spray Co as the registrant in Craig, Colorado. The current certificate of registration was issued on February 19, 2021 and expires on February 29, 2028.

The FAA aircraft reference file describes the type as a single-engine turboprop, one Airesearch TPE331 series engine and 1 seats. Its airworthiness certificate is restricted category, dated February 23, 1995.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N4239X.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N4239X.

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 Colorado· 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.