Air Tractor Inc AT-402B
N4172U is an Air Tractor Inc AT-402B, a fixed-wing airplane with one motor with turboprop engines, built in 2010. It has 2 seats. It is registered to Ski AG Aviation LLC, an LLC in Bismarck, North Dakota. The registration is valid: it was issued on June 4, 2015 and expires on June 30, 2028. It holds a restricted airworthiness certificate for agriculture and pest control; forest, dated May 21, 2010.
Aircraft
- Maker
- Air Tractor Inc
- Model
- AT-402B · all AT-402Bs and related versions
- Serial number
- 402B-1228
- Type
- Fixed-wing, single engine
- Power
- Turboprop, 1 motor · P&W Canada PT6A-15AG · 680 hp
- Seats
- 2
- Year built
- 2010
- Transponder code
- A4F0D2 (octal 51170322)
Registration
- Status
- Valid registration
- Certificate issued
- June 4, 2015
- Expires
- June 30, 2028
- Last FAA action
- May 19, 2023
- Airworthiness
- Restricted · Agriculture and pest control; Forest · May 21, 2010
- FAA region
- Great Lakes
- FAA record id
- 01053155
Owner as the FAA publishes it
- Name
- Ski AG Aviation LLC
- Type
- LLC
- Address
- 12101 28Th St NW
Bismarck, ND 58503-8413
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Earlier use of this number 2
Records check free · 2 to understand · 3 clear
The public federal record on N4172U, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Ski AG Aviation LLC, an LLC, certificate issued June 4, 2015, expires June 30, 2028. No fractional interest recorded. [1]
Restricted certificate for agriculture and pest control; forest, dated May 21, 2010, consistent with the 2010 manufacture year. [1]
No earlier tail number is recorded against serial 402B-1228 for this model in the deregistered file. [2]
N4172U was previously assigned to 2 other aircraft: Piper PA-28R-201 (serial 2844032, cancelled May 31, 2002); Cessna 150D (serial 15060172, cancelled June 30, 1970). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
1 NTSB record under N4172U: Accident on August 28, 2010 at Pompano Beach, FL: no injuries, substantial damage. Details below. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
NTSB records 1
Aircraft on the NTSB record: Air Tractor AT402 · operated under 091
The pilot's delayed decision to abort the takeoff, which resulted in a runway overrun and a subsequent collision with obstacles and terrain. Contributing to the accident was the airplane's high gross weight.
Search the NTSB's CAROL system for ERA10LA450 for the docket and final report. Open CAROL
- FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through August 27, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this record on the FAA site · This record as data