| Tail Number / N-Number | N88911 |
| Manufacturer | ROBINSON HELICOPTER CO |
| Model | R66 |
| Year Built | 2015 |
| Manufacturer's Serial Number | 0602 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROLLS-ROYC |
| Engine Model | 250-C300/A1 |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | LLC |
| Owner Name | MIDWEST AVIATION LLC |
| Street | 1621 MCCABE LN |
| City | CASCADE |
| State | IA |
| Zip Code | 52033-8650 |
| Region | Central |
| County | Dubuque County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Multiple |
| Airworthiness Date | 2022-07-27 |
| Certificate Issue Date | 2022-03-16 |
| Last Action Date | 2022-03-16 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 53040731 |
| Mode S Code Hex | AC41D9 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N88911.
| Tail Number / N-Number | N88911 |
| Manufacturer | DOUGLAS |
| Model | C54B-DC |
| Manufacturer's Serial Number | 27229 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 60 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Average Cruising Speed | 173 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PAN AMERICAN AIRWAYS INC |
| County | Dubuque County |
| Certificate Issue Date | 1947-06-10 |
| Last Status | Valid Registration |
| Cancellation Date | 1949-01-14 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N88911.
| Tail Number / N-Number | N88911 |
| Manufacturer | CUTLER |
| Model | FLYBABY 1A |
| Manufacturer's Serial Number | 1 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 85 miles per hour |
| County | Dubuque County |
| Last Status | N-Number Assigned – but has not yet been registered |