| Tail Number / N-Number | N911AC |
| Manufacturer | BELL TEXTRON CANADA LTD |
| Model | 505 |
| Year Built | 2020 |
| Manufacturer's Serial Number | 65285 |
| 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 | SAFRAN |
| Engine Model | ARRIUS 2R |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 460 hp (343 kW) |
| Type of Registrant | Government |
| Owner Name | ALAMEDA CO SHERIFFS OFFICE |
| Street | 1401 LAKESIDE DR FL 12TH |
| City | OAKLAND |
| State | CA |
| Zip Code | 94612-4305 |
| Region | Western-Pacific |
| County | Alameda County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2020-03-26 |
| Certificate Issue Date | 2020-09-08 |
| Last Action Date | 2020-09-08 |
| Expiration Date | 2027-09-30 |
| Status | Valid Registration |
| Mode S Code | 53115145 |
| Mode S Code Hex | AC9A65 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N911AC.
| Tail Number / N-Number | N911AC |
| Manufacturer | MD HELICOPTERS INC |
| Model | MD 900 |
| Year Built | 2002 |
| Manufacturer's Serial Number | 900-00108 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PW207E |
| Engine Type | Turbo-shaft |
| Number of Engines | 2 engines |
| Horsepower per Engine | 646 hp (482 kW) |
| Total Horsepower | 1,292 hp (964 kW) |
| Type of Registrant | Corporation |
| Owner Name | ACTION AVIATION MD902 U108 INC TRUSTEE |
| Street | 1220 N MARKET ST STE 808 |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19801-2595 |
| County | Alameda County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2002-08-26 |
| Certificate Issue Date | 2009-12-22 |
| Last Action Date | 2009-12-22 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2015-05-15 |