Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N73541.
| Tail Number / N-Number | N73541 |
| Manufacturer | HILLER |
| Model | H-23D |
| Manufacturer's Serial Number | 57-3036 |
| Aircraft Type | Rotorcraft |
| 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 | 75 miles per hour |
| Type of Registrant | Government |
| Owner Name | DEPARTMENT OF TRANSPORTATION TECHNOLOGY |
| Street | WEST MICHIGAN AVENUE |
| City | KALAMAZOO |
| State | MI |
| Zip Code | 49001 |
| Region | Great Lakes |
| Certificate Issue Date | 1972-09-15 |
| Last Status | Valid Registration |
| Cancellation Date | 1975-06-10 |
| Mode S Code | 52360234 |
| Mode S Code Hex | A9E09C |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N73541.
| Tail Number / N-Number | N73541 |
| Manufacturer | CONSOLIDATED VULTEE |
| Model | BT-13A |
| Manufacturer's Serial Number | 3546 |
| 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 | 108 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ST LOUIS FLYING SERVICE |
| Street | KRATZ AIRPORT |
| City | ST LOUIS |
| State | MO |
| Zip Code | 64601 |
| Region | Central |
| Certificate Issue Date | 1947-02-26 |
| Last Status | Valid Registration |
| Cancellation Date | 1949-02-24 |
| Exported To | EGYPT |
| Mode S Code | 52360234 |
| Mode S Code Hex | A9E09C |