| Tail Number / N-Number | N1688E |
| Manufacturer | CESSNA |
| Model | 172N |
| Year Built | 1978 |
| Manufacturer's Serial Number | 17271095 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GRAGG PHILLIP T |
| Street | 10049 MESA MADERA DR |
| City | SAN DIEGO |
| State | CA |
| Zip Code | 92131-1921 |
| Region | Western-Pacific |
| County | San Diego County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-08-22 |
| Certificate Issue Date | 2014-03-11 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-03-31 |
| Status | Valid Registration |
| Mode S Code | 50211333 |
| Mode S Code Hex | A112DB |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N1688E.
| Tail Number / N-Number | N1688E |
| Manufacturer | AERONCA |
| Model | 7AC |
| Manufacturer's Serial Number | 7AC-5253 |
| 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 | Individual |
| Owner Name | WEBER JAMES M |
| Street | 526 LUSTER AVE |
| City | MADISON |
| State | WI |
| Zip Code | 54956 |
| Region | Great Lakes |
| County | San Diego County |
| Certificate Issue Date | 1964-06-29 |
| Last Status | Valid Registration |
| Cancellation Date | 1964-07-07 |
| Exported To | CANADA |