| Tail Number / N-Number | N311MH |
| Manufacturer | BELL |
| Model | 206-L4 |
| Year Built | 1996 |
| Manufacturer's Serial Number | 52055 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ALLISON |
| Engine Model | 250-C30P |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 650 hp (485 kW) |
| Type of Registrant | Corporation |
| Owner Name | MARITIME HELICOPTERS INC |
| Street | 3520 FAA RD |
| City | HOMER |
| State | AK |
| Zip Code | 99603-8030 |
| Region | Alaskan |
| County | Kenai Peninsula Borough |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2019-09-11 |
| Certificate Issue Date | 2019-09-11 |
| Last Action Date | 2022-04-12 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 50645643 |
| Mode S Code Hex | A34BA3 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N311MH.
| Tail Number / N-Number | N311MH |
| Manufacturer | HOLLINS MANTORA |
| Model | SCORPION 133 |
| Year Built | 1987 |
| Manufacturer's Serial Number | RW3112 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTORWAY |
| Engine Model | RW152 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Type of Registrant | Individual |
| Owner Name | HOLLINS MANTORA |
| Street | 404 N HURON ST 2 |
| City | YPSILANTI |
| State | MI |
| Zip Code | 48197 |
| County | Kenai Peninsula Borough |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1987-06-30 |
| Certificate Issue Date | 1985-03-20 |
| Last Action Date | 1992-01-18 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-06-13 |