| Tail Number / N-Number | N921JM |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2004 |
| Manufacturer's Serial Number | 10565 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | LLC |
| Owner Name | TOP TIER FLIGHTS LLC |
| Street | 120 BRADLEY 23 RD |
| City | WARREN |
| State | AR |
| Zip Code | 71671-9506 |
| Region | Southwestern |
| County | Bradley County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2004-12-08 |
| Certificate Issue Date | 2021-07-24 |
| Last Action Date | 2021-07-24 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 53141265 |
| Mode S Code Hex | ACC2B5 |