Piston helicopter

N37BK

2004 Robinson R44 RAVEN II Piston Helicopters

Registered No accidents on file
Built
2004
Serial
10542
Class
Piston helicopter
Engines
Lycoming IO-540 series
Status
Current as of October 2026
Registered owner
Changing Horizons LLC (LLC)
Based
Helena, MT
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2004 Robinson R44 RAVEN II Piston Helicopters
Representative photo of a Robinson R44 RAVEN II Piston Helicopters. Not a photo of N37BK.
Registration record

N37BK on the FAA register

Type
2004 Robinson R44 RAVEN II Piston Helicopters (FAA: Robinson R44 II)
Serial
10542
Engines
Lycoming IO-540 series
Registered owner
Changing Horizons LLC
Helena, MT
Certificate issued
2021-05-08
Airworthiness date
2004-11-09
Registration expires
2028-05-31
Airworthiness class
Standard · normal
Mode S (hex)
A43195
Mode S (octal)
51030625
Seats (type)
4
Weight class
up to 12,499 lb
Range (type)
279 nm
Cruise (type)
100 kt
Status
Current as of October 2026
Market asking range
$267,250 to $399,000
Middle half of 26 live Robinson R44 RAVEN II Piston Helicopters listings, 2003–2014 models (median $349,000). Asking prices, not an appraisal of N37BK.
Registry history

Timeline

  • 2028-05-31
    Registration expires (renewal due).
  • 2021-05-08
    Certificate of registration issued as N37BK to the current registrant.
  • 2004-11-09
    Airworthiness date on the current FAA record (standard category (normal)).
  • 2001-03-30
    N37BK previously assigned to a Homebuilt Knowles-Thorp KT-18 (s/n 807); cancelled.
Overview

About N37BK

N37BK is a 2004 Robinson R44 RAVEN II Piston Helicopters (FAA model R44 II), serial number 10542. The FAA register lists Changing Horizons LLC as the registrant in Helena, Montana. The current certificate of registration was issued on May 8, 2021 and expires on May 31, 2028.

The FAA aircraft reference file describes the type as a piston helicopter, one Lycoming IO-540 series engine and 4 seats. Published figures for the type give a cruise speed of about 100 knots and a range of about 279 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated November 9, 2004.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N37BK. 1 earlier record involves a different aircraft that carried the same N-number.

Cruise
100 kt
Range
279 nm
Fuel burn
15 gph

Published figures for the Robinson R44 RAVEN II Piston Helicopters type. They describe the model, not this airframe's equipment or condition. Robinson R44 RAVEN II Piston Helicopters specs, prices and for-sale inventory →

Safety record

Accident & incident history

2000-09-30 Accident · Opa-Locka, FL Damage: Destroyed Fatal injury NTSB · ATL00LA095
Reported aircraft: William J. Knowles Knowles-Thorp KT-18 — a different aircraft that carried the N37BK registration before this airframe.
Probable cause: The pilot's failure to maintain flying airspeed during initial climb, resulting in an inadvertent stall/spin.

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

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Browse: Robinson aircraft for sale· Robinson R44 RAVEN II Piston Helicopters overview· Aircraft registered in Montana· Registry by state· FAA registry stats

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.