| Tail Number / N-Number | N691PS |
| Manufacturer | DIAMOND AIRCRAFT IND INC |
| Model | DA 40 |
| Year Built | 2006 |
| Manufacturer's Serial Number | 40.691 |
| 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 | IO-360-M1A+ |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Corporation |
| Owner Name | SKYWEST LEASING INC |
| Street | 444 S RIVER RD |
| City | ST GEORGE |
| State | UT |
| Zip Code | 84790-2085 |
| Region | Northwest Mountain |
| County | Washington County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2006-10-20 |
| Certificate Issue Date | 2018-09-27 |
| Last Action Date | 2021-04-27 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 52227703 |
| Mode S Code Hex | A92FC3 |