Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N5721U.
| Tail Number / N-Number | N5721U |
| Manufacturer | PIPER |
| Model | PA-28-140 |
| Manufacturer's Serial Number | 28-26523 |
| 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 | 107 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BREISE & JOHNSTON FLYING SVC INC |
| Street | 8283 BILLY MITCHELL DR |
| City | SANTEE |
| State | CA |
| Zip Code | 92071 |
| Region | Western-Pacific |
| Certificate Issue Date | 1970-02-11 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-03-24 |
| Mode S Code | 51654145 |
| Mode S Code Hex | A75865 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N5721U.
| Tail Number / N-Number | N5721U |
| Manufacturer | RAVEN |
| Model | S55A |
| Manufacturer's Serial Number | S55A-723 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Last Action Date | 1980-10-18 |
| Last Status | N-Number assigned, has not been registered and is pending cancellation |
| Cancellation Date | 2010-11-29 |
| Mode S Code | 51654145 |
| Mode S Code Hex | A75865 |