| Tail Number / N-Number | N3907E |
| Manufacturer | PIPER |
| Model | L-21B |
| Manufacturer's Serial Number | 53-7759 |
| 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 |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 1040 ALTA VISTA DR |
| City | CRAIG |
| State | CO |
| Zip Code | 81625-3225 |
| Region | Northwest Mountain |
| County | Moffat County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1983-11-01 |
| Last Action Date | 2022-12-13 |
| Status | Sale reported |
| Mode S Code | 51103033 |
| Mode S Code Hex | A4861B |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N3907E.
| Tail Number / N-Number | N3907E |
| Manufacturer | AERONCA |
| Model | 7DC |
| Year Built | 1948 |
| Manufacturer's Serial Number | 7DC-111 |
| 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 | 90 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | KING CECIL L DBA WHARTON FLYING SERVICE |
| Street | ROUTE #2 BOX 133B |
| City | WHARTON |
| State | TX |
| Zip Code | 77488 |
| Region | Southwestern |
| County | Moffat County |
| Certificate Issue Date | 1949-04-13 |
| Last Status | Valid Registration |
| Cancellation Date | 1951-07-31 |