N4172U is a 2010 Air Tractor Inc AT-402B (fixed wing single engine) with serial number 402B-1228, registered in Bismarck, ND. Its FAA registration is valid and runs until Jun 30, 2028; the renewal window opens on Dec 30, 2027. It is powered by a P&W Canada PT6A-15AG rated at 680 hp. Its airworthiness certificate is in the restricted class (agriculture and pest control, forest), issued May 21, 2010. It is one of 77 AT-402B aircraft in the FAA registry, 3 of them registered in North Dakota. About 43% of them were built after it. The NTSB accident database lists one record for this airframe since 2008, the latest on Aug 28, 2010.
Registration
- FAA status
- Valid registration
- Expires
- Jun 30, 2028
- Registrant type
- LLC
- Registered owner
- SKI AG AVIATION LLC
- Location
- Bismarck, ND
- Local FAA office (FSDO)
- Fargo FSDO (FAR FSDO) · (701) 492-5800
- Certificate issued
- Jun 4, 2015
- Last FAA action
- May 19, 2023
- Mode S code (hex)
- A4F0D2
- Mode S code (octal)
- 51170322
- Official record
- registry.faa.gov
Aircraft
- Manufacturer
- AIR TRACTOR INC
- Model
- AT-402B
- Type certificate (TCDS)
- A17SW (Air Tractor Inc.)
- Year manufactured
- 2010
- Serial number
- 402B-1228
- Aircraft type
- Fixed wing single engine
- Engine type
- Turbo-prop
- Engine
- P&W CANADA PT6A-15AG (680 hp)
- Engines / seats
- 1 / 2
- Weight class
- Up to 12,499 lb
- Airworthiness
- Restricted since May 21, 2010
- Approved operations
- Agriculture and pest control, Forest
Public airports near Bismarck
| Airport | ID | Distance | Tower | Fuel |
|---|---|---|---|---|
| Bismarck Municipal Bismarck, ND | KBIS | 3 mi | Towered | 100LL, A |
| Mandan Rgnl/Lawler Field Mandan, ND | Y19 | 7 mi | Non-towered | 100LL |
| Hazelton Municipal Hazelton, ND | 6H8 | 33 mi | Non-towered | - |
Straight-line distance from the registration city, from the FAA airport directory (NASR). The registry does not say where an aircraft is based.
Earlier registrations of this number
| Canceled | Aircraft | Serial | Year | Exported to | Same airframe today |
|---|---|---|---|---|---|
| May 31, 2002 | PIPER PA-28R-201 | 2844032 | 2000 | ITALY | |
| Jun 30, 1970 | CESSNA 150D | 15060172 |
NTSB accident and incident records
| Date | Place | Aircraft (as NTSB recorded it) | Damage | Highest injury | NTSB no. |
|---|---|---|---|---|---|
| Aug 28, 2010 | Pompano Beach, FL | Air Tractor AT402 this airframe | Substantial | None | ERA10LA450 |
From the NTSB aviation accident database (events since 2008, data through Sep 29, 2026), matched by N-number. An N-number can move between aircraft, so each row is checked against the serial number on the current registration.