| Tail Number / N-Number | N21PJ |
| Manufacturer | RAYTHEON AIRCRAFT COMPANY |
| Model | 400A |
| Year Built | 1999 |
| Manufacturer's Serial Number | RK-240 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | JT15D 5 SER |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 2,900 pounds-force (12.9 kN) |
| Total Thrust | 5,800 pounds-force (25.8 kN) |
| Type of Registrant | LLC |
| Owner Name | SKY AVIATION HOLDINGS LLC |
| Street | 751 NE 10TH ST |
| City | POMPANO BEACH |
| State | FL |
| Zip Code | 33060-5760 |
| Region | Southern |
| County | Broward County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1999-06-29 |
| Certificate Issue Date | 2022-03-19 |
| Last Action Date | 2022-03-19 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 50334167 |
| Mode S Code Hex | A1B877 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N21PJ.
| Tail Number / N-Number | N21PJ |
| Manufacturer | PIPER |
| Model | PA-31-310 |
| Manufacturer's Serial Number | 317812107 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 162 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AILERON INC |
| Street | PO BOX 8190 |
| City | BOSTON |
| State | MA |
| Zip Code | 02114 |
| County | Broward County |
| Country | US |
| Certificate Issue Date | 1985-10-29 |
| Last Action Date | 1994-09-21 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1994-12-23 |
| Exported To | CANADA |