Single-engine turboprop

N4550N

1991 Air Tractor AT-502

Registered 1 NTSB/FAA record
Built
1991
Serial
502-0131
Class
Single-engine turboprop
Engines
Pratt & Whitney PT6A series
Status
Current as of October 2026
Registered owner
Newberg Sky Spray LLC (LLC)
Based
Hector, MN
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Registration record

N4550N on the FAA register

Type
1991 Air Tractor AT-502
Serial
502-0131
Engines
Pratt & Whitney PT6A series
Registered owner
Newberg Sky Spray LLC
Hector, MN
Certificate issued
2000-11-08
Airworthiness date
1991-02-27
Registration expires
2029-01-31
Airworthiness class
Restricted
Mode S (hex)
A58714
Mode S (octal)
51303424
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-01-31
    Registration expires (renewal due).
  • 2005-08-29
    Accident at Hector, MN; damage: substantial.
  • 2000-11-08
    Certificate of registration issued as N4550N.
  • 1991-02-27
    Airworthiness date on the current FAA record (restricted category).
Overview

About N4550N

N4550N is a 1991 Air Tractor AT-502, serial number 502-0131. The FAA register lists Newberg Sky Spray LLC as the registrant in Hector, Minnesota. The current certificate of registration was issued on November 8, 2000 and expires on January 31, 2029.

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 February 27, 1991.

N4550N has 1 accident/incident record on file (most serious damage: substantial); details are below.

Safety record

Accident & incident history

2005-08-29 Accident · Hector, MN Damage: Substantial NTSB · CHI05CA245
Reported aircraft: Air Tractor AT-502
Probable cause: The pilot's failure to achieve adequate airspeed on takeoff which resulted in the airplane entering a stall/mush when it flew out of ground effect while crossing a large drainage ditch on takeoff.

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 Minnesota· 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.