Turbine helicopter

N911MK

2008 Eurocopter MBB-BK 117 C-2

Registered 1 NTSB/FAA record
Built
2008
Serial
9218
Class
Turbine helicopter
Engines
2 × Turbomeca ARRIEL 1E2
Status
Current as of October 2026
Registered owner
Avera Mckennan (Corporation)
Based
Sioux Falls, SD
Registration record

N911MK on the FAA register

Type
2008 Eurocopter MBB-BK 117 C-2
Serial
9218
Engines
2 × Turbomeca ARRIEL 1E2
Registered owner
Avera Mckennan
Sioux Falls, SD
Certificate issued
2008-11-20
Airworthiness date
2009-03-03
Registration expires
2029-01-31
Airworthiness class
Standard · transport
Mode S (hex)
AC9B7F
Mode S (octal)
53115577
Seats (type)
8
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2029-01-31
    Registration expires (renewal due).
  • 2017-01-27
    Incident at Sioux Falls, SD; damage: minor.
  • 2009-03-03
    Airworthiness date on the current FAA record (standard category (transport)).
  • 2008-11-20
    Certificate of registration issued as N911MK.
Overview

About N911MK

N911MK is a 2008 Eurocopter MBB-BK 117 C-2, serial number 9218. The FAA register lists Avera Mckennan as the registrant in Sioux Falls, South Dakota. The current certificate of registration was issued on November 20, 2008 and expires on January 31, 2029.

The FAA aircraft reference file describes the type as a turbine helicopter, two Turbomeca ARRIEL 1E2 engines and 8 seats. Its airworthiness certificate is standard category (transport), dated March 3, 2009.

N911MK has 1 accident/incident record on file (most serious damage: minor); details are below.

Safety record

Accident & incident history

2017-01-27 Incident · Sioux Falls, SD Damage: Minor NTSB · CEN17IA094
Reported aircraft: Eurocopter MBB BK 117 C-2
Probable cause: The gas generator rear bearing oil scavenge line blocked with coke, which resulted in a failed rear bearing due to an excess of oil lubrication. Contributing to the incident was the operator not completely performing the maintenance items and not utilizing an oil for higher temperatures.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.