| Tail Number / N-Number | N51639 |
| Manufacturer | CESSNA |
| Model | UC-78 |
| Manufacturer's Serial Number | 5043 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 131 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PIONEER VALLEY MILITARY AND TRANSPORTATION MUSEUM |
| Street | PO BOX 1332 |
| City | WESTFIELD |
| State | MA |
| Zip Code | 01086-1332 |
| Region | New England |
| County | Norfolk County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2018-08-22 |
| Last Action Date | 2021-04-11 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 51475234 |
| Mode S Code Hex | A67A9C |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N51639.
| Tail Number / N-Number | N51639 |
| Manufacturer | MAULE |
| Model | M-5-210C |
| Manufacturer's Serial Number | 6046C |
| 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 | 93 miles per hour |
| Type of Registrant | Individual |
| Owner Name | VANCOUVER FLYING SERVICE |
| Street | 16925 NORTH GLISAN ST |
| City | PORTLAND |
| State | OR |
| Zip Code | 97230 |
| Region | Northwest Mountain |
| County | Norfolk County |
| Certificate Issue Date | 1974-09-27 |
| Last Status | Valid Registration |
| Cancellation Date | 1974-09-27 |
| Exported To | CANADA |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N51639.
| Tail Number / N-Number | N51639 |
| Manufacturer | CESSNA |
| Model | 172P |
| Manufacturer's Serial Number | 17274333 |
| 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 |
| County | Norfolk County |
| Last Status | N-Number Assigned – but has not yet been registered |