Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4997E.
| Tail Number / N-Number | N4997E |
| Manufacturer | SIKORSKY |
| Model | S-58ET |
| Year Built | 1959 |
| Manufacturer's Serial Number | 58-1098 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 14 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 81 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BRISTOW HELICOPTERS INC |
| Street | 16 SUNNY REACH DRIVE |
| City | WEST HARTFORD |
| State | CT |
| Zip Code | 06117 |
| Region | New England |
| Certificate Issue Date | 1978-11-22 |
| Last Status | Valid Registration |
| Cancellation Date | 1980-06-20 |
| Exported To | INDONESIA |
| Mode S Code | 51432331 |
| Mode S Code Hex | A634D9 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4997E.
| Tail Number / N-Number | N4997E |
| Manufacturer | DOUGLAS |
| Model | DC3C |
| Manufacturer's Serial Number | 12191 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 32 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 144 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MIAMI AVIATION CORP |
| Street | HANGAR 102 OPA-LOCKA AIRPORT |
| City | OPA-LOCKA |
| State | FL |
| Zip Code | 33054 |
| Region | Southern |
| Certificate Issue Date | 1964-08-14 |
| Last Status | Valid Registration |
| Cancellation Date | 1965-07-26 |
| Mode S Code | 51432331 |
| Mode S Code Hex | A634D9 |