| Tail Number / N-Number | N91678 |
| Manufacturer | MOONEY |
| Model | M20R |
| Year Built | 1997 |
| Manufacturer's Serial Number | 29-0129 |
| 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) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-550 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | Individual |
| Owner Name | HARMON LLOYD C |
| Street | 44 RIVERSIDE LANE |
| City | ELLSWORTH |
| State | ME |
| Zip Code | 04605 |
| Region | New England |
| County | Hancock County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1997-11-13 |
| Certificate Issue Date | 2000-03-31 |
| Last Action Date | 2022-08-13 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 53130143 |
| Mode S Code Hex | ACB063 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N91678.
| Tail Number / N-Number | N91678 |
| Manufacturer | PIPER |
| Model | PA-34-220T |
| Manufacturer's Serial Number | 3433152 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| County | Hancock County |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1990-01-31 |