Airline / aviation operator profile

    Intermountain Aviation

    United States · Aircraft details and history

    Source last updated: Mar 08, 2026
    IATA—
    ICAO—
    Callsign–

    Operator profile

    Full Name
    Intermountain Aviation Incorporated
    Country
    United States
    Founded
    1963
    Ceased operations
    1 Mar 1975
    Johnsons Flying Service (JF)
    Base / Main Hub
    Marana Pinal Airpark (MZJ / KMZJ)

    Aircraft overview

    In Service0
    Current Total0
    Historic13
    Overall13
    Aircraft TypeIn ServiceParkedCurrent TotalFutureHistoricAvg. AgeOverall
    De Havilland Canada DHC-6 Twin Otter1111
    Lockheed L-188 Electra22
    Total00001313

    Aircraft registry

    Source list categories: Historic Fleet

    Source record fields: Aircraft Type · Config · Delivered · Exit Date · Status / Fate · Remark

    RegistrationAircraft TypeSource Details
    N7705De Havilland Canada DHC-6-1 Twin Otter
    • Y19 / Cargo
    • 9 Apr 1968
    • Apr 1969
    • XA-TUO Transportes Aéreos Terrestres
    • lsd
    N7672De Havilland Canada DHC-6-100 Twin Otter
    • Y19 / Cargo
    • Aug 1969
    • Dec 1969
    • N7672 Golden West Airlines
    • lsf Golden West Airlines
    N7711De Havilland Canada DHC-6-100 Twin Otter
    • Y19 / Cargo
    • May 1971
    • Dec 1971
    • N7711 Golden West Airlines
    • lsf Golden West Airlines
    N206EDe Havilland Canada DHC-6-200 Twin Otter
    • Y19 / Cargo
    • May 1972
    • Jul 1972
    • N206E Continental Oil Company
    N7267De Havilland Canada DHC-6-200 Twin Otter
    • Y19 / Cargo
    • 19 Feb 1969
    • Jan 1975
    • N7267 Fairways Corporation
    • lsf Fairways Corporation
    N790MDe Havilland Canada DHC-6-200 Twin Otter
    • Y19 / Cargo
    • Dec 1971
    • 21 Mar 1973
    • N790M Procter & Gamble
    N239ZDe Havilland Canada DHC-6-300 Twin Otter
    • Y19 / Cargo
    • 24 Nov 1971
    • Jan 1975
    • N239Z Evergreen Helicopters
    N264ZDe Havilland Canada DHC-6-300 Twin Otter
    • Y19 / Cargo
    • Dec 1971
    • Jan 1975
    • N264Z Evergreen Helicopters
    N288ZDe Havilland Canada DHC-6-300 Twin Otter
    • Y19 / Cargo
    • Feb 1974
    • Jan 1975
    • N288Z Evergreen Helicopters
    N361VDe Havilland Canada DHC-6-300 Twin Otter
    • Y19 / Cargo
    • 11 May 1973
    • Jan 1975
    • N361V Rocky Mountain Airways
    N774MDe Havilland Canada DHC-6-300 Twin Otter
    • Y19 / Cargo
    • Apr 1970
    • 25 Feb 1971
    • N774M Air America
    N1006TLockheed L-188A Electra
    • Config: Y94
    • Delivered: 7 Apr 1972
    • 1 Mar 1975
    • N1006T Johnsons Flying Service
    N835ACLockheed L-188C Electra
    • 12 Jan 1972
    • 12 Nov 1973
    • N835AC Wharfca
    • lsd

    Source notes

    Source disclaimer/notes: Only supported aircraft types are included in this list.

    Source rights notice: © 2026 kathama.com. All rights reserved. This data may not be copied, reproduced, or published without prior written permission. Limited excerpts may be used under fair use principles when properly attributed to kathama.com with a direct link back to the original source.

    Complete source reference

    The collapsed reference below preserves the normalized text in this operator’s source block so source content is not silently omitted by the redesigned presentation.

    Complete normalized source transcript for this operator

    Intermountain Aviation

    Full Name | Intermountain Aviation Incorporated

    Country | United States

    Founded | 1963

    Ceased operations | 1 Mar 1975 Johnsons Flying Service (JF)

    Base / Main Hub | Marana Pinal Airpark (MZJ / KMZJ)

    Last updated on Mar 08, 2026

    Fleet Matrix

    Aircraft Type | Current | Future 2 | Historic | Avg. Age | Total

    Aircraft Type | In Service | Parked | Total | Future 2 | Historic | Avg. Age | Total

    De Havilland Canada DHC-6 Twin Otter | 11

    Lockheed L-188 Electra | 2

    Total | 0 | 13

    Fleet List

    Historic Fleet

    Reg

    Aircraft Type

    Config

    Delivered

    Exit Date

    Status / Fate

    Remark

    N7705

    De Havilland Canada DHC-6-1 Twin Otter

    Y19 / Cargo

    9 Apr 1968

    Apr 1969

    XA-TUO Transportes Aéreos Terrestres

    lsd

    N7672

    De Havilland Canada DHC-6-100 Twin Otter

    Y19 / Cargo

    Aug 1969

    Dec 1969

    N7672 Golden West Airlines

    lsf Golden West Airlines

    N7711

    De Havilland Canada DHC-6-100 Twin Otter

    Y19 / Cargo

    May 1971

    Dec 1971

    N7711 Golden West Airlines

    lsf Golden West Airlines

    N206E

    De Havilland Canada DHC-6-200 Twin Otter

    Y19 / Cargo

    May 1972

    Jul 1972

    N206E Continental Oil Company

    N7267

    De Havilland Canada DHC-6-200 Twin Otter

    Y19 / Cargo

    19 Feb 1969

    Jan 1975

    N7267 Fairways Corporation

    lsf Fairways Corporation

    N790M

    De Havilland Canada DHC-6-200 Twin Otter

    Y19 / Cargo

    Dec 1971

    21 Mar 1973

    N790M Procter & Gamble

    N239Z

    De Havilland Canada DHC-6-300 Twin Otter

    Y19 / Cargo

    24 Nov 1971

    Jan 1975

    N239Z Evergreen Helicopters

    N264Z

    De Havilland Canada DHC-6-300 Twin Otter

    Y19 / Cargo

    Dec 1971

    Jan 1975

    N264Z Evergreen Helicopters

    N288Z

    De Havilland Canada DHC-6-300 Twin Otter

    Y19 / Cargo

    Feb 1974

    Jan 1975

    N288Z Evergreen Helicopters

    N361V

    De Havilland Canada DHC-6-300 Twin Otter

    Y19 / Cargo

    11 May 1973

    Jan 1975

    N361V Rocky Mountain Airways

    N774M

    De Havilland Canada DHC-6-300 Twin Otter

    Y19 / Cargo

    Apr 1970

    25 Feb 1971

    N774M Air America

    N1006T

    Lockheed L-188A Electra

    Y94

    7 Apr 1972

    1 Mar 1975

    N1006T Johnsons Flying Service

    N835AC

    Lockheed L-188C Electra

    12 Jan 1972

    12 Nov 1973

    N835AC Wharfca

    lsd

    © 2026 kathama.com. All rights reserved. This data may not be copied, reproduced, or published without prior written permission. Limited excerpts may be used under fair use principles when properly attributed to kathama.com with a direct link back to the original source.

    Disclaimer

    Only supported aircraft types are included in this list.