| Tail Number / N-Number | N18LL |
| Manufacturer | BEECH |
| Model | A36 |
| Year Built | 1978 |
| Manufacturer's Serial Number | E-1332 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 138 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PIPING TECHNOLOGY CONSULTANTS INC |
| Street | C/O LARRY LOZIUK 7132 W J L SMITH LN |
| City | MONEE |
| State | IL |
| Zip Code | 60449-9035 |
| Region | Great Lakes |
| County | Will County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-08-08 |
| Certificate Issue Date | 1985-05-29 |
| Last Action Date | 2020-04-17 |
| Expiration Date | 2027-09-30 |
| Status | Valid Registration |
| Mode S Code | 50237530 |
| Mode S Code Hex | A13F58 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N18LL.
| Tail Number / N-Number | N18LL |
| Manufacturer | BEECH |
| Model | 56TC |
| Year Built | 1968 |
| Manufacturer's Serial Number | TG-65 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | TI0-541 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 310 hp (231 kW) |
| Total Horsepower | 620 hp (463 kW) |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Individual |
| Owner Name | CAMMACK WILLIAM R JR |
| Street | 222 STARKEY ST |
| City | SAINT PAUL |
| State | MN |
| Zip Code | 55107-1813 |
| County | Will County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-04-09 |
| Certificate Issue Date | 2002-09-24 |
| Last Action Date | 2005-09-20 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2006-07-11 |