| Tail Number / N-Number | N4311Z |
| Manufacturer | BRISTOL-BLENHEIM AIRCRAFT CO |
| Model | BOLINGBROKE MK IV |
| Manufacturer's Serial Number | 11-880-202 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Individual |
| Owner Name | WEEKS KERMIT A |
| Street | 1400 BROADWAY BLVD SE |
| City | POLK CITY |
| State | FL |
| Zip Code | 33868-9109 |
| Region | Southern |
| County | Polk County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 1991-06-27 |
| Last Action Date | 2020-06-09 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51224550 |
| Mode S Code Hex | A52968 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4311Z.
| Tail Number / N-Number | N4311Z |
| Manufacturer | PIPER |
| Model | PA-18-150 |
| Manufacturer's Serial Number | 18-8621 |
| 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 | 97 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PIPER AIRCRAFT CORP |
| Street | 820 EAST BALD EAGLE ST |
| City | LOCK HAVEN |
| State | PA |
| Zip Code | 17745 |
| Region | Eastern |
| County | Polk County |
| Certificate Issue Date | 1967-12-18 |
| Last Status | Valid Registration |
| Cancellation Date | 1968-02-08 |
| Exported To | SWITZERLAND |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4311Z.
| Tail Number / N-Number | N4311Z |
| Manufacturer | PIPER |
| Model | PA-28-181 |
| Manufacturer's Serial Number | 2890070 |
| 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 | 105 miles per hour |
| County | Polk County |
| Last Status | Aircraft registered to the manufacturer under their Dealer Certificate |
| Cancellation Date | 1988-08-11 |