| Tail Number / N-Number | N691MT |
| Manufacturer | HEAD BALLOONS INC |
| Model | AX8-88B |
| Year Built | 2007 |
| Manufacturer's Serial Number | 366 |
| Aircraft Type | Balloon |
| 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 | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Type of Registrant | LLC |
| Owner Name | SCHWEMMER AEROSPORTS LLC |
| Street | 4314 W 10TH ST N |
| City | WICHITA |
| State | KS |
| Zip Code | 67212-2021 |
| Region | Central |
| County | Sedgwick County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2007-06-01 |
| Certificate Issue Date | 2020-07-23 |
| Last Action Date | 2020-07-23 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 52227622 |
| Mode S Code Hex | A92F92 |