| Tail Number / N-Number | N5551Q |
| Manufacturer | SOCATA |
| Model | TB-20 TRINIDAD |
| Manufacturer's Serial Number | 1276 |
| 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 | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 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 | 1991-05-13 |
| Certificate Issue Date | 2022-01-20 |
| Last Action Date | 2022-09-08 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 51612210 |
| Mode S Code Hex | A71488 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N5551Q.
| Tail Number / N-Number | N5551Q |
| Manufacturer | MOONEY |
| Model | M20C |
| Manufacturer's Serial Number | 2964 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 127 miles per hour |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1989-10-20 |