| Tail Number / N-Number | N503Y |
| Manufacturer | GRUMMAN |
| Model | G-164 |
| Year Built | 1965 |
| Manufacturer's Serial Number | 353 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | JACOBS |
| Engine Model | R755B SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 275 hp (205 kW) |
| Average Cruising Speed | 98 miles per hour |
| Type of Registrant | LLC |
| Owner Name | REGENALD MICHAUD AVIATION LLC |
| Street | 975 1ST AVE |
| City | WILLOWS |
| State | CA |
| Zip Code | 95988-2015 |
| Region | Western-Pacific |
| County | Glenn County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1965-06-25 |
| Certificate Issue Date | 2021-10-05 |
| Last Action Date | 2021-10-05 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 51443473 |
| Mode S Code Hex | A6473B |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N503Y.
| Tail Number / N-Number | N503Y |
| Manufacturer | UNKNOWN |
| Model | UNKNOWN |
| Year Built | 1931 |
| Manufacturer's Serial Number | 100 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 999 seats |
| Weight Class | CLASS 4 (UAV up to 55 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Type of Registrant | Corporation |
| County | Glenn County |
| Last Status | Valid Registration |
| Cancellation Date | 1931-04-21 |