| Tail Number / N-Number | N21902 |
| Manufacturer | CESSNA |
| Model | 150L |
| Year Built | 1973 |
| Manufacturer's Serial Number | 15074523 |
| 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 | 0-200 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SLEEPING GIANT FLYING CLUB INC |
| Street | 3080 AIRPORT RD |
| City | HELENA |
| State | MT |
| Zip Code | 59601-1269 |
| Region | Northwest Mountain |
| County | Lewis and Clark County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-04-09 |
| Certificate Issue Date | 1997-10-03 |
| Last Action Date | 2021-02-19 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 50356544 |
| Mode S Code Hex | A1DD64 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N21902.
| Tail Number / N-Number | N21902 |
| Manufacturer | DOUGLAS |
| Model | C-47 |
| Manufacturer's Serial Number | 4281 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 32 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 150 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PAN AMERICAN AIRWAYS INC |
| Street | 135 E 42ND ST |
| City | NEW YORK CITY |
| State | NY |
| Zip Code | 10017 |
| Region | Eastern |
| County | Lewis and Clark County |
| Certificate Issue Date | 1946-10-15 |
| Last Status | Valid Registration |
| Cancellation Date | 1947-02-13 |
| Exported To | MEXICO |