| Tail Number / N-Number | N4031M |
| Manufacturer | FROST STEPHEN |
| Model | CHINOOK PLUS 2 |
| Year Built | 2004 |
| Manufacturer's Serial Number | 02158 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Kit Manufacturer | AIRCRAFT SALES & PARTS LTD |
| Kit Model | CHINOOK PLUS 2 |
| Type of Registrant | Individual |
| Owner Name | FROST STEPHEN A |
| Street | 10016 EDMONDS WAY STE C BOX 109 |
| City | EDMONDS |
| State | WA |
| Zip Code | 98020 |
| Region | Northwest Mountain |
| County | Snohomish County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2004-12-07 |
| Certificate Issue Date | 2003-02-28 |
| Last Action Date | 2022-06-09 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 51135115 |
| Mode S Code Hex | A4BA4D |
Deregistered Aircraft 1 of 3. This aircraft was previously assigned the N-number N4031M.
| Tail Number / N-Number | N4031M |
| Manufacturer | ADAMS BALLOON |
| Model | A55S |
| Manufacturer's Serial Number | 114 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 0 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 30 miles per hour |
| Type of Registrant | Individual |
| Owner Name | MURPHY SEAN G |
| Street | 8412 CHESTNUT LA |
| City | CARY |
| State | IL |
| Zip Code | 60013 |
| County | Snohomish County |
| Country | US |
| Certificate Issue Date | 1990-08-13 |
| Last Action Date | 1999-10-19 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2000-01-08 |
Deregistered Aircraft 2 of 3. This aircraft was previously assigned the N-number N4031M.
| Tail Number / N-Number | N4031M |
| Manufacturer | PIPER |
| Model | PA-12 |
| Manufacturer's Serial Number | 12-2916 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 82 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SHELTON JOHN N |
| Street | RT 1 PO BOX 547 |
| City | SUMMERVILLE |
| State | SC |
| Zip Code | 29483 |
| Region | Southern |
| County | Snohomish County |
| Certificate Issue Date | 1974-05-03 |
| Last Status | Valid Registration |
| Cancellation Date | 1974-11-22 |
Deregistered Aircraft 3 of 3. This aircraft was previously assigned the N-number N4031M.
| Tail Number / N-Number | N4031M |
| Manufacturer | HILLER |
| Model | UH-12E |
| Manufacturer's Serial Number | 5168 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 72 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | HILLER AVIATION |
| Street | 2075 W SCRANTON AVE |
| City | PORTERVILLE |
| State | CA |
| Zip Code | 93257 |
| Region | Western-Pacific |
| County | Snohomish County |
| Last Status | Valid Registration |
| Cancellation Date | 1981-06-29 |
| Exported To | ARGENTINA |