| Tail Number / N-Number | N9988Z |
| Manufacturer | MOONEY AIRPLANE CO INC |
| Model | M20TN |
| Year Built | 2008 |
| Manufacturer's Serial Number | 31-0111 |
| 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 | CONT MOTOR |
| Engine Model | TSIO-550-G |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 280 hp (209 kW) |
| Type of Registrant | Corporation |
| Owner Name | SOONER ANSWER SERVICE INC |
| Street | 501 W EDMOND RD |
| City | EDMOND |
| State | OK |
| Zip Code | 73003-5622 |
| Region | Southwestern |
| County | Oklahoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2008-09-09 |
| Certificate Issue Date | 2009-01-08 |
| Last Action Date | 2022-09-26 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 53371743 |
| Mode S Code Hex | ADF3E3 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N9988Z.
| Tail Number / N-Number | N9988Z |
| Manufacturer | CESSNA |
| Model | TU206G |
| Manufacturer's Serial Number | U20606798 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 132 miles per hour |
| Type of Registrant | Non Citizen Corporation |
| Owner Name | ADALID CORPORATION |
| Street | 307 E 10TH STREET |
| City | DEL RIO |
| State | TX |
| Zip Code | 78840 |
| County | Oklahoma County |
| Country | US |
| Certificate Issue Date | 1987-01-26 |
| Last Action Date | 1997-08-20 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1999-05-10 |
| Exported To | MEXICO |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N9988Z.
| Tail Number / N-Number | N9988Z |
| Manufacturer | CONVAIR |
| Model | 340/440 |
| Manufacturer's Serial Number | 131 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 46 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | TEX SUN BEECHCRAFT |
| Street | BOX 16248 |
| City | SAN ANTONIO |
| State | TX |
| Zip Code | 78216 |
| Region | Southwestern |
| County | Oklahoma County |
| Certificate Issue Date | 1966-02-13 |
| Last Status | Valid Registration |
| Cancellation Date | 1974-01-22 |