The U.S. aircraft register, updated daily · Carbon Free Flight by 2050
Registered aircraft · FAA record as of October 2, 2026
N4WD

Mitsubishi MU-2B-40

Valid Montana

N4WD is a Mitsubishi MU-2B-40, a fixed-wing airplane with more than one motor with turboprop engines, built in 1979. It has 10 seats. It is registered to Hat Creek Aviation LLC, an LLC in Hamilton, Montana. The registration is valid: it was issued on July 18, 2012 and expires on July 31, 2028. It holds a standard airworthiness certificate for normal, dated July 8, 1981.

Aircraft

Maker
Mitsubishi
Model
MU-2B-40 · all MU-2B-40s and related versions
Serial number
399 S.A.
Type
Fixed-wing, multi-engine
Power
Turboprop, 2 motors · Airesearch TPE331 SERIES · 904 hp
Seats
10
Year built
1979
Transponder code
A4A9E7 (octal 51124747)

Registration

Status
Valid registration
Certificate issued
July 18, 2012
Expires
July 31, 2028
Last FAA action
May 26, 2023
Airworthiness
Standard · Normal · July 8, 1981
FAA region
Northwest Mountain
FAA record id
00771261

Owner as the FAA publishes it

Name
Hat Creek Aviation LLC
Type
LLC
Address
170 S 2Nd St Ste C
Hamilton, MT 59840-2561

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 1

2011-04-26Cessna A185F · exported to Canada · Triennial registration form was mailed and has not been returned by the Post Office

Records check free · 1 to understand · 4 clear

The public federal record on N4WD, 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.

CLEARRegistration and identity

Valid registration to Hat Creek Aviation LLC, an LLC, certificate issued July 18, 2012, expires July 31, 2028. No fractional interest recorded. [1]

CLEARAirworthiness certificate

Standard certificate for normal, dated July 8, 1981, consistent with the 1979 manufacture year. [1]

CLEARPrior registrations of this airframe

No earlier tail number is recorded against serial 399 S.A. for this model in the deregistered file. [2]

ATTENTIONTail number reuse

N4WD was previously assigned to 1 other aircraft: Cessna A185F (serial 18504176, cancelled April 26, 2011). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]

NOTERecent registry documents

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]

CLEARAccident and incident record

No NTSB investigation records located under N4WD. CLEAR means the query ran and returned nothing, not that nothing ever happened. [4]

PENDINGTitle chain, liens and 337 forms

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.

PENDINGAirworthiness directives and utilization

AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.

CLEAR the source was checked and shows no adverse findingATTENTION a fact a buyer or lender should understand, often routineNOTE context onlyPENDING covered by the full report
  1. FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
  2. FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
  3. FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
  4. 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