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Enstrom F-28C

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Aircraft model · Rotorcraft · Rotorcraft · registry code 3300407

Manufacturer (registry)
ENSTROM
Model
F-28C
Registry code
3300407
Registered
46 aircraft
Type
Rotorcraft
Engines
1 · Reciprocating
Seats
3
Weight class
Up to 12,499 lb
Cruise speed
75 mph
Certification
Type certificated
Data sheet
TCDSH1CE
Holder
The Enstrom Helicopter Corporation

Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker.

On this page

Aircraft by year built · 98

1975Registered nowDeregistered2026

Airworthiness directives that may apply · 29

ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.

1977In forceSuperseded2026
See all 34 ADs
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duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('3300407'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

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Information bulletins that may apply · 2

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duckdb -csv -c "SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
  FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
  WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_saib.parquet' WHERE aircraft_model_code IN ('3300407'))
  GROUP BY s.saib_number ORDER BY issue_date DESC"

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Registered aircraft · 46

N116TBMcmullan Francis G · Weirsdale, FLS/N 362N128SAFly-Right Aviation LLC · Anderson, SCS/N 355N191JStyer David B · Pendleton, ORBuilt 1977 · S/N 390
See all 46 registered aircraft
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duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE aircraft_model_code IN ('3300407')
  ORDER BY n_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB investigations · 101

Aircraft matched to this model through the registry, by N-number and event date, checked against the reported serial number, make and model.

Defining event, 2008 on

Of 15 cases NTSB coded with a defining event. All defining events

In the probable cause, 2008 on

Findings NTSB made part of the probable cause. A case can have several. All findings

First occurrence, 1982 to 2007

Of 56 cases with NTSB’s older coding, defined in its coding manual.

NTSB WPR26LA094Accident · Minor injuriesClass 3 · LimitedPreliminary reportEnstrom F28C · Leeds, UTOn February 2, 2026, at about 1301 mountain standard time, an Enstrom F-28C helicopter, registration N5692Y, was substantially damaged near Leeds, Utah. The pilot and passenger sustained minor injuries. At the time of the accident, the helicopter was being…Feb 2, 2026 · N5692Y · Substantial damageNTSB ANC23LA024Accident · No injuriesClass 3 · LimitedFinal reportEnstrom F-28C · Anchorage, AKThe pilot’s failure to maintain main rotor rpm on takeoff, which resulted in a forced run-on landing.Mar 5, 2023 · N5688R · Substantial damageNTSB ERA21LA357Accident · No injuriesClass 4 · LimitedFinal reportEnstrom F28 · Toughkenamon, PAThe pilot’s failure to maintain control of the helicopter during an out-of-ground effect hover in a gusty wind, due to loss of tail rotor effectiveness.Sep 8, 2021 · N51789 · Substantial damage
See all 101 investigations
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.aircraft_model_code IN ('3300407')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

FAA incident reports · 140

Matched to this model through the registry, by N-number and event date, checked against the reported make and model.

Accident 20260202007429AN5692Y · Leeds, UTWitnesses saw the pilot attempting to take off from his driveway for a local flight. The helicopter lifted off into a hover, which witnesses described as "unstable," prompting the pilot to land. They then heard an increase in main rotor RPM, followed by a…Feb 2, 2026 · N5692Y · Substantial damageAccident 20230305001809AEnstrom F-28C · Anchorage, AKOn March 5, 2023, about 1400 Alaska standard time, an Enstrom F-28C helicopter, [privacy data omitted] sustained substantial damage when it was involved in an accident in Anchorage, Alaska. The pilot and passengers were not injured. The helicopter was…Mar 5, 2023 · N5688R · Substantial damageAccident 20210908015469AEnstrom F-28C · Toughkenamon, PAPilot was hovering helicopter in a left to right crosswind. The pilot stated that he did not obtain a weather brief that day. He experienced tail rotor vortex ring state in the crosswind. (Loss of tail rotor effectiveness) The helicopter continued in a right…Sep 8, 2021 · N51789 · Substantial damage
See all 140 incident reports
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duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE aircraft_model_code IN ('3300407')
  ORDER BY event_date DESC, report_number DESC"

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Service difficulty reports · 13

SDR 2022FA0000357Engine · intermittentENGINE STARTED RUNNING ROUGH AFTER APPROXIMATELY 1000 FT PLANE RETURNED TO AIRPORT WITHOUT ANY FURTHER PROBLEMS. PLANE IS IN THE SHOP FOR EVALUATION.Jul 19, 2022 · N191J · Enstrm F28C · Engine (Reciprocating)SDR AUS20020292Bulkhead · damaged(AUS) TAIL BOOM BULKHEAD AND SKINS CRACKED. INCORRECT ANCHOR NUTFITTED.Mar 20, 2002 · Enstrm F28C · Rotorcraft Tail BoomSDR AUS20020291Skin · cracked(AUS) TAIL CONE SKIN CRACKED IN AREA UNDER RADIO AERIAL.Mar 20, 2002 · Enstrm F28C · Rotorcraft Tail BoomSDR AUS20010932Turbocharger · fod(AUS) ENGINE TURBOCHARGER INGESTED A NUT FROM THE AIR STATIC TUBE LOCATED INSIDE THE AIR CLEANER. FOD.Jul 26, 2001 · Enstrm F28C · Exhaust TurbochargerSDR 99ZZZX2072Control Cable · brokenAT APPROXIMATELY 12 INCHES FORWARD OF THE TAIL ROTOR, THE LEFT TAIL ROTOR CONTROL CABLE BROKE. NO EVIDENCE OF RUBBING OR CHAFING.Apr 1, 1999 · N635H · Enstrm F28C · Tail Rotor Control SystemSDR CA980915013Flex Coupling · cracked(CAN) ONE CRACKED PLATE IN FLEX PACK ON 100 HR INSPECTION.Sep 2, 1998 · Enstrm F28C · Tail Rotor Drive ShaftSDR 97ZZZX3208Socket · crackedAFTER GROUND RUN AND HOVER TO CHECK ENGINE PERFORMANCE, AIRCRAFT WAS LANDED AND COLLECTIVE WAS LOWERED TO SECURE FRICTION. MODERATE PRESSURE WAS APPLIED AND BEFORE FRICTION COULD BE SET, A BANG WAS HEARD. THE PILOT'S COLLECTIVE STICK DROPPED APPROXIMATELY 1 May 16, 1997 · N15SA · Enstrm F28C · Main Rotor ControlSDR 97ZZZX1934Valve Guide · failedEXHAUST VALVE GUIDE BROKE UP LETTING THE EXHAUST VALVE LOOSEN IN THE CYLINDER. EXHAUST VALVE DID NOT FAIL. PIECES FROM THE GUIDE JAMMED THE TURBOCHARGER TURBINE WHEEL DESTROYING THE TURBOCHARGER AND CAUSING LOSS OF POWER.Apr 1, 1997 · N5691Y · Enstrm F28C · Reciprocating Engine Cylinder SectionSDR 97ZZZX964Cylinder · failedON A NIGHT TRAINING FLIGHT, NR 2 CYLINDER BLEW OUT ABOVE THE EXHAUST PORT. THE BLOW-OUT STEERED THE NR 4 CYLINDER OIL LINE AND STARTED A FIRE. AN EMERGENCY LANDING WAS ACCOMPLISHED WITHOUT INJURY TO THE INSTRUCTOR OR THE STUDENT, HOWEVER, THE AIRCRAFT WAS COJan 29, 1997 · N51774 · Enstrm F28C · Reciprocating Engine Cylinder SectionSDR CA960522005Blade · delamination(CAN) BLADE DELAMINATING IN MID PART OF BLADE TOWARDS LEADING EDGE.May 8, 1996 · Enstrm F28C · Tail Rotor BladesSDR 96ZZZX159Bolt · failedTHE NR 3 ROD CAP SEPARATED FROM ROD. ROD BOLTS WERE DAMAGED TOO BADLY TO BE IDENTIFIED FOR SURE, BUT SHOULD BE PART NUMBER LISTED. THESE BOLTS HAVE STRETCH TORQUE. SUBMITTER SUSPECTS IMPROPER TORQUING (EITHER TOO MUCH OR NOT ENOUGH) CAUSING BOLT FAILURE. ADec 6, 1995 · N5697B · Enstrm F28C · Reciprocating Engine Power SectionSDR 95ZZZX5535Contact Points · worn followerENGINE FAILED DUE TO BOTH SETS OF POINTS FAILING TO OPEN CAUSED BY EXCESSIVE WEAR OF PLASTIC CAM FOLLOWERS. SUSPECT LACK OF LUBRICATION AS NO OIL FOUND ON CAM OR IN FELT WIPER PADS. SUBMITTER SUGGESTS CHECK AND LUBE ON 100-HOUR INSPECTION.Sep 4, 1995 · N503H · Enstrm F28C · Magneto/DistributorSDR 95ZZZX4024Tube · detachedHELICOPTER DEPARTED SCK AIRPORT AND MADE A FORCED LANDING IN A FIELD. INVESTIGATION FOUND AN INDUCTION TUBE HAD COME LOOSE. RECOMMEND DURING OVERHAUL, ALL TUBES BE RE-SWAGED.Jul 26, 1995 · N5689T · Enstrm F28C · Reciprocating Engine Cylinder Section
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = 'F28C'
  ORDER BY difficulty_date DESC"

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STCs that may be installed · 44

Approved for this model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.

STC SR03173CHInstallation of Isolair Innovator 11 Model 3900-280 Spray SystemIsolair Inc.STC SR00063DEInstallation of Inframetrics IRTV-445G infrared imaging system.Dart Aerospace CompanySTC SH492NWInstallation of cargo racks Model 100 (rectangular) or Model 101(tapered) on each sideThe ENSTROM Helicopter Corporation
See all 44 STCs
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(matched_model) AS matched_model
    FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
    WHERE aircraft_model_code IN ('3300407')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number"

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