| Tail Number / N-Number | N999U |
| Manufacturer | MOONEY |
| Model | M20M |
| Year Built | 1995 |
| Manufacturer's Serial Number | 27-0207 |
| Aircraft Type | Fixed wing single engine |
| 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 | TI0-540 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 310 hp (231 kW) |
| Type of Registrant | LLC |
| Owner Name | QUALITAIR LLC TRUSTEE |
| Street | FLUGPLATZ MICHELSTADT MOSSAUER STRASSE 17 |
| City | MICHELSTADT |
| Zip Code | 64720 |
| Region | European |
| Country | DE |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1995-11-20 |
| Certificate Issue Date | 2020-11-16 |
| Last Action Date | 2021-01-04 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 53372724 |
| Mode S Code Hex | ADF5D4 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N999U.
| Tail Number / N-Number | N999U |
| Manufacturer | PIPER |
| Model | PA-15 |
| Year Built | 1948 |
| Manufacturer's Serial Number | 15-70 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 |
| Average Cruising Speed | 75 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GRAVES ROGER E |
| Street | 3554 N MILITARY RD |
| City | ARLINGTON |
| State | VA |
| Zip Code | 22207 |
| Region | Eastern |
| Certificate Issue Date | 1966-11-01 |
| Last Status | Valid Registration |
| Cancellation Date | 1979-09-18 |