Turbine helicopter

N166MB

1980 Hughes 500D

Registered No accidents on file
Built
1980
Serial
1000831D
Class
Turbine helicopter
Engines
Allison 250-C20 series
Status
Current as of October 2026
Registered owner
Helicopter Roundup Service LLC (LLC)
Based
Nephi, UT
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1980 Hughes 500D
Representative photo of a Hughes 500D. Not a photo of N166MB.
Registration record

N166MB on the FAA register

Type
1980 Hughes 500D (FAA: Hughes Helicopters HUGHES 369D)
Serial
1000831D
Engines
Allison 250-C20 series
Registered owner
Helicopter Roundup Service LLC
Nephi, UT
Certificate issued
2013-09-25
Airworthiness date
1996-09-05
Registration expires
2029-09-30
Airworthiness class
Standard · normal
Mode S (hex)
A1090D
Mode S (octal)
50204415
Seats (type)
4
Weight class
up to 12,499 lb
Range (type)
232 nm
Cruise (type)
125 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2029-09-30
    Registration expires (renewal due).
  • 2013-09-25
    Certificate of registration issued as N166MB.
  • 1996-09-05
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1980
    Manufactured (1980).
Overview

About N166MB

N166MB is a 1980 Hughes 500D (FAA model HUGHES 369D), serial number 1000831D. The FAA register lists Helicopter Roundup Service LLC as the registrant in Nephi, Utah. The current certificate of registration was issued on September 25, 2013 and expires on September 30, 2029.

The FAA aircraft reference file describes the type as a turbine helicopter, one Allison 250-C20 series engine and 4 seats. Published figures for the type give a cruise speed of about 125 knots and a range of about 232 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated September 5, 1996.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N166MB.

Cruise
125 kt
Range
232 nm
Fuel burn
12 gph

Published figures for the Hughes 500D type. They describe the model, not this airframe's equipment or condition.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N166MB.

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

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Browse: Aircraft registered in Utah· 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.