Type Record · As of May 3, 2026
ENSTROM 280
Rotorcraft · LYCOMING HI0-360 SER
Registered
5
Year Range
1974–1975
NTSB Events
0
Airworthiness Directives
13
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered ENSTROM 280 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- OH 60.0% 3
- WA 20.0% 1
- TX 20.0% 1
By Decade of Manufacture
- 1970s 40.0% 2
- Unknown 60.0% 3
02 / NTSB Records
Events involving ENSTROM 280 aircraft
No NTSB-recorded events match ENSTROM 280 in the indexed corpus.
02c / Academic Research
Scholarly work mentioning ENSTROM 280
Papers and reports across NASA, NTSB, FAA CAMI, AOPA ASI, Embry-Riddle, arXiv, and the broader academic graph that mention this airframe. Title or keyword match — drill into each for full abstract + author list + PDF link.
- arXiv 2020 · arXiv preprint
Vision based hardware-software real-time control system for autonomous landing of an UAV
In this paper we present a vision based hardware-software control system enabling autonomous landing of a multirotor unmanned aerial vehicle (UAV).
- NASA NTRS 2019 · Technical Memorandum (TM)
Rollout and Turnoff (ROTO) Guidance and Information Displays: Effect on Runway Occupancy Time in Simulated Low-Visibility Landings
This report examines a rollout and turnoff (ROTO) system for reducing the runway occupancy time for transport aircraft in low-visibility weather.
- Embry-Riddle Scholarly Commons 2005 · Journal article (JAAER)
Yield Management in the Airline Industry
"This is it! This is a shot across our bow! If we don't invent a way to deal with (yield management), we're history!" - Donald Burr, Former CEO of People's Express.
Browse the full corpus — academia portal ↗
03 / Airworthiness Directives
FAA directives applicable to ENSTROM 280
13 directive(s) on file. Showing the most recent 13.
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Jan 17, 2018
Airworthiness Directives; The Enstrom Helicopter Corporation Helicopters
We are superseding Airworthiness Directive (AD) 2015-08-51 for the Enstrom Helicopter Corporation (Enstrom) Model F-28A, 280, F-28C, F-28C-2, F-28C-2R, 280C, F-28F, F-28F-R, 280F, 280FX, and 480 helicopters. AD 2015-08-51 required an inspection of the main rotor spindle (spindle) and reporting the inspection results t…
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Dec 20, 2017
Airworthiness Directives; The Enstrom Helicopter Corporation Helicopters
We are adopting a new airworthiness directive (AD) for the Enstrom Helicopter Corporation (Enstrom) Model F-28, F-28A, F-28C, F- 28C-2, F-28C-2R, F-28F, F-28F-R, TH-28, 280, 280C, 280F, 280FX, 480, and 480B helicopters. This AD requires inspecting certain rod end bearing assemblies. This AD is prompted by an accident.…
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Mar 2, 2017
Airworthiness Directives; The Enstrom Helicopter Corporation
We propose to supersede airworthiness directive (AD) 2015-08- 51 for Enstrom Helicopter Corporation (Enstrom) Model F-28A, 280, F- 28C, F-28C-2, F-28C-2R, 280C, F-28F, F-28F-R, 280F, 280FX, and 480 helicopters. AD 2015-08-51 requires an inspection of the main rotor spindle (spindle) and reporting the inspection result…
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May 18, 2015
Airworthiness Directives; The Enstrom Helicopter Corporation
We are publishing a new airworthiness directive (AD) for Enstrom Helicopter Corporation (Enstrom) Model F-28A, 280, F-28C, F- 28C-2, F-28C-2R, 280C, F-28F, F-28F-R, 280F, 280FX, and 480 helicopters. This AD was sent previously to all known U.S. owners and operators of these helicopters and supersedes Emergency AD (EAD…
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Jun 18, 2012
Airworthiness Directives; Enstrom Helicopter Corporation Helicopters
We are superseding an existing airworthiness directive (AD) for Enstrom Helicopter Corporation (Enstrom) Model F-28C, F-28C-2, F- 28F, 280C, 280F, 280FX, TH-28, 480, and 480B helicopters to add another trim relay to the applicability and to revise the modification instructions. This AD is prompted by the discovery tha…
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Aug 28, 2007
Airworthiness Directives; Enstrom Helicopter Corporation Model F-28A, F-28C, F-28F, TH-28, 280, 280C, 280F, 280FX, 480, and 480B Helicopters
This amendment adopts a new airworthiness directive (AD) for Enstrom Helicopter Corporation (Enstrom) Model F-28A, F-28C, F-28F, TH- 28, 280, 280C, 280F, 280FX, 480, and 480B helicopters that requires determining the installation dates for each main rotor push-pull control rod (push-pull rod), inspecting the push-pull…
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Jul 31, 2007
Airworthiness Directives; Enstrom Helicopter Corporation Model F-28, F-28A, F-28C, F-28C-2, F-28C-2R, F-28F, F-28F-R, 280, 280C, 280F, 280FX, TH-28, 480, and 480B Helicopters
This amendment adopts a new airworthiness directive (AD) for Enstrom Helicopter Corporation (Enstrom) Model F-28, F-28A, F-28C, F- 28C-2, F-28C-2R, F-28F, F-28F-R, 280, 280C, 280F, 280FX, TH-28, 480, and 480B helicopters. This action requires a visual check to determine if a certain serial-numbered main rotor blade re…
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Jan 8, 2007
Airworthiness Directives; Enstrom Helicopter Corporation Model F-28A, F-28C, F-28F, TH-28, 280, 280C, 280F, 280FX, 480, and 480B Helicopters
This document proposes adopting a new airworthiness directive (AD) for Enstrom Helicopter Corporation (Enstrom) Model F-28A, F-28C, F-28F, TH-28, 280, 280C, 280F, 280FX, 480, and 480B helicopters. The AD would require determining the installation dates for each main rotor push-pull control rod (push-pull rod), inspect…
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Apr 17, 2002
Airworthiness Directives; Enstrom Helicopter Corporation Model F-28, F-28A, F-28C, F-28F, 280, 280C, 280F, and 280FX Helicopters
This amendment supersedes an existing airworthiness directive (AD) for Enstrom Helicopter Corporation (EHC) Model F-28, F-28A, F-28C, F-28F, 280, 280C, 280F, and 280FX helicopters. That AD currently requires determining the radius of the shaft fillet, performing certain visual and dye-penetrant inspections before furt…
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Oct 29, 2001
Airworthiness Directives; Enstrom Helicopter Corporation Model F-28, F-28A, F-28C, F-28F, 280, 280C, 280F and 280FX Helicopters
This amendment supersedes an existing airworthiness directive (AD) for Enstrom Helicopter Corporation (EHC) Model F-28, F-28A, and 280 helicopters. That AD currently requires inspecting the main rotor shaft (shaft) for a crack or other evidence of damage until appropriately modifying or replacing the shaft with an air…
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Sep 22, 1997
Airworthiness Directives; Enstrom Helicopter Corporation Model F- 28A, F-28C, 280 and 280C Helicopters
This amendment adopts a new airworthiness directive (AD) that is applicable to Enstrom Helicopter Corporation (Enstrom) Model F-28A, 280 and certain serial-numbered F-28C and 280C helicopters. This action requires an inspection of the voltage control system and an owner/ operator (pilot) cockpit check of the amperage…
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Mar 19, 1996
Airworthiness Directives; The Enstrom Helicopter Corporation Model F-28, F-28A, F-28C, F-28C-2, F-28F, 280, 280C, 280F, and 280FX Helicopters
This amendment supersedes an existing airworthiness directive (AD), applicable to The Enstrom Helicopter Corporation (Enstrom) Model F-28, F-28A, F-28C, F-28C-2, F-28F, 280, 280C, 280F, and 280FX helicopters, that currently requires initial and repetitive inspections of a certain main rotor transmission clutch assembl…
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Jul 6, 1994
Airworthiness Directives; The Enstrom Helicopter Corporation Model F-28A, F-28C, F-28C-2, 280, and 280C Series Helicopters
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to The Endstrom Helicopter Corporation Model F-28A, F-28C, 280, and 280C series helicopters, that currently requires an initial and repetitive visual inspections of the upper swashplate bearings for corrosion, and replacemen…
04 / Type Certificate Data Sheets
FAA TCDS for ENSTROM 280
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- H1CE Historical Rev 35 · 12/15/2015
The Enstrom Helicopter Corporation
Models: F-28C, F-28F, TH-28, F-28A + 10 more
06 / Supplemental Type Certificates
Modifications approved for ENSTROM 280
69 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.
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12/22/2023
STC SR00063DE
Installation of Inframetrics IRTV-445G infrared imaging system.
Dart Aerospace Company
-
04/14/2023
STC SH3319NM
Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,
Precise Flight Inc
-
04/04/2023
STC SA11137SC
Installation of Plane-Power ALT-FLX alternator
Hartzell Engine Technologies, LLC
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12/17/2020
STC SR02704SE
Installation and maintenance of the Sunspot 36 and 46 series lights
AeroLED's Holdings LLC
-
12/17/2020
STC SR02704SE
Installation and maintenance of the Sunspot 36 and 46 series lights
AeroLEDS LLC
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06/04/2020
STC SA02268CH (PAGE 5)
Installation of Airwolf Filter Corp. Air Oil Separator
Airwolf Filter Corporation
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05/19/2020
STC SH3319NM (1 OF 2)
Installation of Precise Flight Pulselite Control Unit in the\nLanding /Taxi Recognition Visual Control Light system,
Precise Flight Inc
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02/17/2020
STC SR02124SE
Installation functionality. of Data Garmin Required: transponders: (1) Garmin GTX Master 345/345R Drawing with List ADS-B (MDL), Out and In 005-00734-A4, functionality;
Garmin International Inc
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05/29/2019
STC SR00359BO
Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.
Whelen Aerospace Technologies
-
12/20/2017
STC SR00568NY
Installation of remote mounted oil filter, model AFC-500 or AFC-600, and kit AFC-K014.
Airwolf Filter Corporation
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12/20/2017
STC SA02268CH (PAGE 5)
Installation of Airwolf Filter Corp. Air Oil Separator
Airwolf Filter Corporation
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05/23/2017
STC SR02487AK
Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System
ADS-B Technologies, LLC
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12/29/2016
STC SH3319NM
Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,
Precise Flight Inc
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11/28/2016
STC SR00359BO
Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.
Whelen Engineering Co Inc
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11/11/2016
STC SR02124SE
Installation functionality. of Data Garmin Required: transponders: (1) Garmin GTX Master 345/345R Drawing with List ADS-B (MDL), Out and In 005-00734-A4, functionality;
Garmin International Inc
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03/04/2016
STC SR02470AK
Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System
ADS-B Technologies, LLC
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03/04/2016
STC SR02471AK
Installation of the L-3 Communications NGT -9000/9000R ADS-B System
ADS-B Technologies, LLC
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02/16/2016
STC SR02470AK
Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System
ADS-B Technologies LLC
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02/16/2016
STC SR02471AK
Installation of the L-3 Communications NGT -9000/9000R ADS-B System
ADS-B Technologies LLC
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06/08/2015
STC SR03465CH
Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-ECD-084-280, or AA-ECD-084-480
Airwolf Aerospace LLC
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04/03/2015
STC SR03520NY
Installation of Rotor Head Cover
Spitfire Aerospace, LLC
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01/14/2015
STC SR02394AK
Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system
Seaplanes North LLC
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07/17/2014
STC SA11137SC
Installation of Plane-Power ALT-FLX alternator
Hartzell Engine Technologies, LLC
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07/08/2014
STC SR03353CH
Installation of Aspen Avionics Evolution Primary and Multi-Functional Flight Displays
AspenSTC Inc
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06/09/2014
STC SH3319NM
Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,
Precise Flight Inc
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07/25/2013
STC SH3319NM
Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,
Precise Flight Inc
-
05/10/2013
STC SA11137SC
Installation of Plane-Power ALT-FLX alternator
Plane Power Ltd.
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03/26/2013
STC SA11137SC
Installation of Plane-Power ALT-FLX alternator
Plane-Power Systems, Inc.
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03/14/2013
STC SA11137SC
Installation of Plane-Power ALT-FLX alternator
Plane-Power Systems, Inc.
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10/17/2012
STC SH3319NM
Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,
Precise Flight Inc
+ 39 more STCs on file
07 / PMA replacement parts
FAA-approved replacement parts for ENSTROM 280
8 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.
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A-0750161-25#https://drs.faa.gov/browse/excelExternalWindow/5083DFE4689D480B86257D47005879B2.0001##
Exhaust Half Clamp
Aerospace Welding Minneapolis, Inc. replaces Enstrom P/N 099005-401 EL-037360-401
PMA holder → -
A-0750161-25#https://drs.faa.gov/browse/excelExternalWindow/54DAA1CC1DA536F48625767E005B7B60.0001##
Exhaust Half Clamp
Aerospace Welding Minneapolis, Inc. replaces Enstrom P/N 099005-401 EL-037360-401
PMA holder → -
A-0750161-25#https://drs.faa.gov/browse/excelExternalWindow/08FE2FC61154F00386257552006FDB49.0001##
Exhaust Half Clamp
Aerospace Welding Minneapolis, Inc. replaces Enstrom P/N 099005-401, EL-037360-401
PMA holder → -
A-0750161-25#https://drs.faa.gov/browse/excelExternalWindow/0A9F4FD013389F86862573870060A7ED.0001##
Exhaust Half Clamp
Aerospace Welding Minneapolis, Inc. replaces Enstrom 099005-401, EL-037360-401
PMA holder → -
DEL099005-100#https://drs.faa.gov/browse/excelExternalWindow/FA3593FCB70AEC1D86257BA2005122BF.0001##
Bead Clamp Seal
Dawley Manufacturing Corp replaces 099005-401, EL-037360-401
PMA holder → -
DEL099005-100#https://drs.faa.gov/browse/excelExternalWindow/93920D0C8AE5372786257B500066C593.0001##
Bead Clamp Seal
Dawley Manufacturing Corp replaces 099005-401, EL-037360-401
PMA holder → -
DEL099005-401#https://drs.faa.gov/browse/excelExternalWindow/2259D39F40849F1986257B280065133A.0001##
Bead Clamp
Dawley Manufacturing Corp replaces Enstrom 099005-401, EL-037360-401
PMA holder → -
01-0790906-00#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136486675220220610124334.0001##
LED Landing Light
LoPresti Speed Merchants replaces Modification Part
PMA holder →
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for ENSTROM 280
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 5 registered N-numbers
Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.
05 / Sources & Methodology
Every count traces back to a primary US-government source
- FAA Aircraft Registry →
Refreshed Apr 27, 2026
Available
- NTSB CAROL →
Refreshed Apr 27, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026
Available
We render counts and lists as the agency publishes them. Read the methodology →