| Tail Number / N-Number | N637SH |
| Manufacturer | MCDONNELL DOUGLAS |
| Model | DC-9-83(MD-83) |
| Manufacturer's Serial Number | 49568 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 172 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | P & W |
| Engine Model | JT8D-219 |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 21,000 pounds-force (93.4 kN) |
| Total Thrust | 42,000 pounds-force (186.8 kN) |
| Type of Registrant | Corporation |
| Owner Name | PACIFIC AIRCORP 49741 INC |
| Street | C/O SKY AVIATION LEASING MGMT LLC 559 PACIFIC AVE |
| City | SAN FRANCISCO |
| State | CA |
| Zip Code | 94133-4612 |
| Region | Western-Pacific |
| County | San Francisco County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Special Flight Permit |
| Airworthiness Date | 2009-12-17 |
| Certificate Issue Date | 2020-02-04 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-02-28 |
| Status | Valid Registration |
| Mode S Code | 52054525 |
| Mode S Code Hex | A85955 |