| Tail Number / N-Number | N81MS |
| Manufacturer | PIPER |
| Model | PA-31T1 |
| Manufacturer's Serial Number | 31T-8104007 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | RG AVIATION CORP |
| Street | 1512 EUREKA RD STE 210 |
| City | ROSEVILLE |
| State | CA |
| Zip Code | 95661-3069 |
| Region | Western-Pacific |
| County | Placer County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2023-01-21 |
| Last Action Date | 2023-01-21 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 52604047 |
| Mode S Code Hex | AB0827 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N81MS.
| Tail Number / N-Number | N81MS |
| Manufacturer | SWENSON MYRON B |
| Model | WAG-AERO CUBY |
| Manufacturer's Serial Number | 621 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | SWENSON MYRON B |
| Street | RR 2 BOX 202 |
| City | OCHEYEDAN |
| State | IA |
| Zip Code | 51354 |
| County | Placer County |
| Country | US |
| Certificate Issue Date | 1980-06-04 |
| Last Action Date | 2000-05-16 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2001-07-19 |