Single-engine turboprop

N4999X

1975 Rockwell International S-2R

Registered No accidents on file
Built
1975
Serial
2136R
Class
Single-engine turboprop
Engines
Pratt & Whitney R1340 series
Status
Current as of October 2026
Registered owner
Fountain Inc (Corporation)
Based
Moscow, ID
Registration record

N4999X on the FAA register

Type
1975 Rockwell International S-2R
Serial
2136R
Engines
Pratt & Whitney R1340 series
Registered owner
Fountain Inc
Moscow, ID
Certificate issued
1995-06-05
Airworthiness date
1975-04-16
Registration expires
2027-07-31
Airworthiness class
Restricted
Mode S (hex)
A63530
Mode S (octal)
51432460
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2027-07-31
    Registration expires (renewal due).
  • 1995-06-05
    Certificate of registration issued as N4999X.
  • 1975-04-16
    Airworthiness date on the current FAA record (restricted category).
Overview

About N4999X

N4999X is a 1975 Rockwell International S-2R, serial number 2136R. The FAA register lists Fountain Inc as the registrant in Moscow, Idaho. The current certificate of registration was issued on June 5, 1995 and expires on July 31, 2027.

The FAA aircraft reference file describes the type as a single-engine turboprop, one Pratt & Whitney R1340 series engine and 1 seats. Its airworthiness certificate is restricted category, dated April 16, 1975.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N4999X. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1979-05-25 Accident · Helix,Or, 37 Damage: Substantial NTSB · 3 1206
Reported aircraft: Aero Comdr S2R — a different aircraft that carried the N4999X registration before this airframe.

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 Idaho· 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.