Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4531M.
| Tail Number / N-Number | N4531M |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-401 |
| Manufacturer's Serial Number | 401-0764 |
| Aircraft Type | Fixed wing single engine |
| 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 | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | KIFER FLYING SERVICE INC |
| Street | PO BOX 177 |
| City | NEWELLTON |
| State | LA |
| Zip Code | 71357-0177 |
| Country | US |
| Certificate Issue Date | 1990-08-14 |
| Last Action Date | 1999-08-17 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1999-10-15 |
| Mode S Code | 51277710 |
| Mode S Code Hex | A57FC8 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4531M.
| Tail Number / N-Number | N4531M |
| Manufacturer | PIPER |
| Model | PA-11 |
| Year Built | 1947 |
| Manufacturer's Serial Number | 11-35 |
| 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 | 67 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CAPE & ISLANDS AIRWAYS INC |
| Street | AIRPORT |
| City | WAREHAM |
| State | MA |
| Zip Code | 02532 |
| Region | New England |
| Certificate Issue Date | 1947-04-24 |
| Last Status | Valid Registration |
| Cancellation Date | 1949-05-25 |
| Mode S Code | 51277710 |
| Mode S Code Hex | A57FC8 |