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Aircraft record

N646H1977 Enstrom Helicopter Corp 280C

Registration validUnclaimedSource: FAA, updated Oct 18, 2026

Safety record in brief:1 NTSB accident (substantial damage, Oct 2024)6 ADs may apply6 service difficulty reports

Registration
Valid
expires Dec 31, 2031
Based in
Milton Freewater, OR
owner city / state
Engine
HI0-360 SER · 205 hp
Lycoming
Owners
1
since 2024
NTSB events
1
substantial, 2024
ADs may apply
6
confirm with A&P
Service reports
6
since 1995

Registration

FAA Aircraft Registry · Oct 18, 2026
Registered owner
Individual owner
City, state
Milton Freewater, OR
Certificate issued
Dec 23, 2024
Expires
Dec 31, 2031
Airworthiness
Standard · Normal
Airworthiness date
Feb 10, 1997

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Enstrom Helicopter Corp
Model
280C
Year
1977
Serial number
1099
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
3
Engines
1
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
H1CE
Mode S code
A87C34

Engine

Make and model
Lycoming Hi0-360 Ser
Type
Reciprocating
Power
205 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2024 – nowIndividual ownerMilton Freewater, OR · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 18, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

Oct 9, 2024 · Vale, OR

The pilot’s failure to maintain engine and rotor rpm during takeoff, that resulted in a hard landing.

Damage
Substantial
Injuries
None
Report
WPR25LA010

From NTSB records; matched by serial number.Read NTSB report (search CAROL for WPR25LA010)

Accident history for this model

ADs published since 1998 that may apply (6)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2018-02-01The Enstrom Helicopter Corporation HelicoptersFeb 21, 2018Airframe (280C)Certain serial numbers: 480 5001–5006. Only with: With main rotor spindle P/N 28-14282-11 or 28-14282-13 installed.
2017-26-03The Enstrom Helicopter Corporation HelicoptersJan 4, 2018Airframe (280C)Only with: Rod end bearing assembly P/N 01-824-08E-011, 09455-01-824-08E-011, ECD091-1, ASMK8T, M81935/1-08K, MS21242S8K, or MTK8 installed.
2012-11-05Enstrom Helicopter Corporation HelicoptersJul 3, 2012Airframe (280C)Only with: Helicopters with trim relay P/N KUP14D55-24, KUP14D55-472, M83536/10-015M, or M83536/10-024M installed; does not apply to helicopters with reversible trim motor P/N 28-16621 or P/N AD1R-10.
2011-26-10Enstrom Helicopter Corporation HelicoptersJan 23, 2012Airframe (280C)Only with: Helicopters with a trim relay P/N KUP14D55-472, M83536/10-015M, or M83536/10-024M installed; does not apply to helicopters with reversible trim motor P/N 28-16621 or AD1R-10.
2002-08-03Enstrom Helicopter Corporation Model F-28, F-28A, F-28C, F-28F, 280, 280C, 280F, and…May 2, 2002Airframe (280C)
Show all 6 ADs
ADSubjectEffectiveApplies to
96-06-03The Enstrom Helicopter Corporation Model F-28, F-28A, F-28C, F-28C-2, F-28F, 280, 280C…Mar 19, 1996Airframe (280C)

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (6)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Stabilizers · bearing · delaminatedMay 19, 2004

    PILOTS COMPLAINED ABOUT HEAVY COLLECTIVE AND EXCESSIVE AMOUNT OF RT COLLECTIVE INPUT TO FLY. UPON INSPECTION OF THE LAMIFLEX BEARINGS, IT WAS DISCOVERED THAT THE RUBBER AND BRASS MATERIAL WAS EXTRUDING AND DELAMINATING. UNABLE TO DETERMINE CAUSE. USEFUL LIFE IS RATED AT FIVE YEARS, AND THESE HAD…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · doubler · crackedMay 19, 2004

    BULKHEAD DOUBLER UNDER NR 3 TAILROTOR DRIVESHAFT PILLOW BLOCK FOUND CRACKED. CRACKS WERE PROPAGATING FROM THE RADIUS AREA ON BOTH UPPER TABS WERE THE NUT PLATES ARE RIVETED ON. BOTH NUT PLATES HAD PREVIOUSLY BEEN ROUNDED IN THE RADIUS AREA TO REDUCE THE CHANCES OF CRACKING. IT IS POSSIBLE THAT THE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Main rotor drive · clutch · wornOct 2, 2003

    ON DRIVE BELT CLUTCH MECHANISM, THE SPRING HAD WORN THROUGH THE SIDE OF THE HOUSING FROM MANY HOURS OF RUBBING BACK AND FORTH. THE ABOVE MENTIONED SPRING AND THE SPRING CAP WERE ALSO WORN BEYOND THE INSPECTION CRITERIA IN THE MFG MM. AS FAR AS WE COULD TELL FROM RESEARCHING RECORDS, THESE ARE ALL…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 6 reports
  • Rotor flight controls · control cable · wornOct 2, 2003

    BOTH REAR TAIL ROTOR CONTROLS CABLES WERE WORN WHERE THEY PASS THROUGH PLASTIC FAIR-LEADS IN AFT BULKHEAD OF TAIL BOOM. BOTH WERE WORN TO 40-50 PERCENT INSP CRITERIA. THIS IS BECOMING A CHRONIC PROBLEM AS RECORDS INDICATE THEY WERE REPLACED 1 MAY 2001, AFT OF 2821.0; 15 MAR 2002, AFT OF 3159.7…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Rotor flight controls · control cable · wornJun 1, 2003

    BOTH LEFT AND RIGHT TAIL ROTOR CONTROL CABLES SHOW EXCESS WEAR, WHERE THEY PASS THRU THE FAIRLEADS IN THE AFT TALL CONE BULKHEAD. CABLES HAVE BEEN WEARING IN THIS LOCATION CONSTANTLY EVERY 300 TO 400 HOURS. SUGGEST A WIDER CONTACT SURFACE AREA AT THE FAIR LEAD TO REDUCE THE CONCENTRATION OF…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuel · line · brokenJan 4, 2002

    THE TUBE FAILED INSIDE THE FERRULE ON THE ENGINE DRIVEN FUEL PUMP FITTING DUE TO RUBBING AND VIBRATION. FAILURE WAS FOUND AFTER PILOT COMPLAINED OF LOW M.A.P., ABOUT 2 IN HG, AT MAXIMUM OPERATING PERIMETERS, AND FUEL CONSUMPTION LOW.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 18, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 18, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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