Turbine helicopter

N1091S

1980 Hughes 500D

Registered 1 NTSB/FAA record
Built
1980
Serial
300691D
Class
Turbine helicopter
Engines
Allison 250 SER 250HP
Status
Current as of October 2026
Registered owner
Temsco Helicopters Inc (Corporation)
Based
Ketchikan, AK
1980 Hughes 500D
Representative photo of a Hughes 500D. Not a photo of N1091S.
Registration record

N1091S on the FAA register

Type
1980 Hughes 500D (FAA: Hughes Helicopters HUGHES 369D)
Serial
300691D
Engines
Allison 250 SER 250HP
Registered owner
Temsco Helicopters Inc
Ketchikan, AK
Certificate issued
1980-07-25
Airworthiness date
1980-03-27
Registration expires
2027-10-31
Airworthiness class
Standard · normal
Mode S (hex)
A028AF
Mode S (octal)
50024257
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

  • 2027-10-31
    Registration expires (renewal due).
  • 2003-07-21
    Accident at Ketchikan, AK; damage: substantial.
  • 1980-07-25
    Certificate of registration issued as N1091S.
  • 1980-03-27
    Airworthiness date on the current FAA record (standard category (normal)).
Overview

About N1091S

N1091S is a 1980 Hughes 500D (FAA model HUGHES 369D), serial number 300691D. The FAA register lists Temsco Helicopters Inc as the registrant in Ketchikan, Alaska. The current certificate of registration was issued on July 25, 1980 and expires on October 31, 2027.

The FAA aircraft reference file describes the type as a turbine helicopter, one Allison 250 SER 250HP 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 March 27, 1980.

N1091S has 1 accident/incident record on file (most serious damage: substantial); details are below.

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

2003-07-21 Accident · Ketchikan, AK Damage: Substantial Minor injury NTSB · ANC03LA082
Reported aircraft: Hughes 369D
Probable cause: The improper installation of a bolt in the gas generator governor linkage by company maintenance personnel, which resulted in a loss of the bolt, a loss of engine power while maneuvering, and subsequent forced landing and collision with trees. Factors contributing to the accident were an inadequate preflight inspection by the pilot, and an uncommanded surge in engine power.

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 Alaska· 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.