Piston helicopter

N73998

1964 Bell 47G-3B-1

Registered 5 NTSB/FAA records
Built
1964
Serial
2902
Class
Piston helicopter
Engines
1
Status
Current as of October 2026
Registered owner
Heli-Works Flight Services LLC (LLC)
Based
Deer Lodge, MT
1964 Bell 47G-3B-1
Representative photo of a Bell 47G-3B-1. Not a photo of N73998.
Registration record

N73998 on the FAA register

Type
1964 Bell 47G-3B-1
Serial
2902
Engines
1
Registered owner
Heli-Works Flight Services LLC
Deer Lodge, MT
Certificate issued
2015-10-23
Airworthiness date
—
Registration expires
2028-10-31
Airworthiness class
—
Mode S (hex)
A9F02E
Mode S (octal)
52370056
Seats (type)
3
Weight class
up to 12,499 lb
Range (type)
214 nm
Cruise (type)
73 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2028-10-31
    Registration expires (renewal due).
  • 2015-10-23
    Certificate of registration issued as N73998.
  • 1994-06-10
    Accident at Medina, MN; damage: substantial.
  • 1991-08-09
    Accident at Maple Grove, MN; damage: substantial.
  • 1979-07-06
    Accident at Socorro,Nm, 31; damage: substantial.
  • 1975-07-23
    Accident at Belen,Nm, 31; damage: substantial.
  • 1965-02-27
    Accident at Bishop Calif, 05; damage: destroyed.
  • 1964
    Manufactured (1964).
Overview

About N73998

N73998 is a 1964 Bell 47G-3B-1, serial number 2902. The FAA register lists Heli-Works Flight Services LLC as the registrant in Deer Lodge, Montana. The current certificate of registration was issued on October 23, 2015 and expires on October 31, 2028.

The FAA aircraft reference file describes the type as a piston helicopter and 3 seats. Published figures for the type give a cruise speed of about 73 knots and a range of about 214 nm; actual performance depends on configuration, load and conditions.

N73998 has 5 accident/incident records on file (most serious damage: destroyed); details are below.

Cruise
73 kt
Range
214 nm
Fuel burn
7 gph

Published figures for the Bell 47G-3B-1 type. They describe the model, not this airframe's equipment or condition.

Safety record

Accident & incident history

1994-06-10 Accident · Medina, MN Damage: Substantial NTSB · CHI94T#A04
Reported aircraft: Bell 47G3B1
1991-08-09 Accident · Maple Grove, MN Damage: Substantial NTSB · CHI91DER13
Reported aircraft: Bell 47G-3B-1
Probable cause: THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE HELICOPTER DURING THE FORCED LANDING. RELATED FACTORS ARE THE LOSS OF ENGINE POWER, LOSS OF ROTOR RPM, THE ERODED COMPRESSOR BLADES, THE PILOT'S OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT AND INADEQUATE AIRCRAFT PREFLIGHT, AND THE BLOCKED SPRAY EQUIPMENT.
1979-07-06 Accident · Socorro,Nm, 31 Damage: Substantial NTSB · 3 1955
Reported aircraft: Bell 47G
Probable cause: PPROX 7500FT.NO ENG DISCREPANCIES FOUND.
1975-07-23 Accident · Belen,Nm, 31 Damage: Substantial NTSB · 3 2164
Reported aircraft: Bell 47G3B1
Probable cause: ED TAILBOOM.
1965-02-27 Accident · Bishop Calif, 05 Damage: Destroyed NTSB · 2 0077
Reported aircraft: Bell 47G3B1
Probable cause: MB CAPABILITY-IMPROPER SELECTION OF ROUTE OF FLIGH

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.