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Aircraft record

N3951A2010 American Eurocopter Corp AS350B3

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:1 NTSB accident (substantial damage, Jun 2025)12 ADs may apply1 service difficulty report

Registration
Valid
expires Dec 31, 2029
Based in
Washington, DC
owner city / state
Engine
ARRIEL 2B1 · 747 hp
Turbomeca
Owners
1
since 2010
NTSB events
1
substantial, 2025
ADs may apply
12
confirm with A&P
Service reports
1
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
US Department Of Homeland Security
Owner type
Government
City, state
Washington, DC
Certificate issued
Dec 20, 2010
Expires
Dec 31, 2029
Airworthiness
Standard · Normal
Airworthiness date
Jun 2, 2010

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
American Eurocopter Corp
Model
AS350B3
Year
2010
Serial number
4993
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
7
Engines
1
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
H9EU
Mode S code
A497D8

Engine

Make and model
Turbomeca Arriel 2b1
Type
Turbo-shaft
Power
747 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. 2010 – nowUS Department Of Homeland SecurityWashington, DC · current
  2. 1983 – 1984Excelair INCMiami, FL · different airframe: Boeing 707-123b S/N 17647
  3. 1956 – 1971U S Department Of NavyWashington, DC · different airframe: Douglas Dc3c S/N 33076

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

Jun 25, 2025 · San Luis, AZ

The pilot receiving instruction’s failure to properly recover the helicopter during an autorotative landing and the instructor pilot’s failure to intervene, which resulted in a hard landing.

Damage
Substantial
Injuries
None
Report
WPR25LA189

From NTSB records; matched by serial number.Read NTSB report (search CAROL for WPR25LA189)

Accident history for this model

ADs published since 1998 that may apply (12)

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
2016-25-13Safran Helicopter Engines, S.A. (Formerly Turbomeca S.A.) Turboshaft EnginesFeb 3, 2017Engine (ARRIEL 2B1)Only with: Engine accessory gearbox (AGB) P/N 0292120650 with a machined front casing installed.
2015-13-04Turbomeca S.A. Turboshaft EnginesSep 1, 2015Engine (ARRIEL 2B1)
2014-12-05Turbomeca S.A. Turboshaft EnginesAug 4, 2014Engine (ARRIEL 2B1)
2014-07-06Turbomeca S.A. Turboshaft EnginesMay 15, 2014Engine (ARRIEL 2B1)Only with: Engines that do not have modification TU157 incorporated.
2012-18-18Turbomeca S.A. Turboshaft EnginesOct 24, 2012Engine (ARRIEL 2B1)Only with: Engines not modified by TU166 modification.
Show all 12 ADs
ADSubjectEffectiveApplies to
2012-03-11Turbomeca S.A. Turboshaft EnginesMar 20, 2012Engine (ARRIEL 2B1)
2009-09-03Turbomeca S.A. Arriel 2B and 2B1 Turboshaft EnginesJun 1, 2009Engine (ARRIEL 2B1)
2009-08-08Turbomeca Arriel 1B, 1D, 1D1, 2B, and 2B1 Turboshaft EnginesApr 29, 2009Engine (ARRIEL 2B1)Serial numbers per Figure 1 of Turbomeca Alert MSB No. A292 72 0827, Version A (Arriel 1B/1D/1D1) and Figure 1 of Turbomeca Alert MSB No. A292 72 2833, Version A (Arriel 2B/2B1), both dated March 20, 2009. Only with: Engines with power turbine modules M04 installed, as listed by SN in the referenced service bulletins.
2009-01-11Turbomeca Arriel 2B and 2B1 Turboshaft EnginesFeb 27, 2009Engine (ARRIEL 2B1)
2007-19-09Turbomeca Arriel 2B1 Turboshaft EnginesOct 3, 2007Engine (ARRIEL 2B1)
2007-10-06Turbomeca Arriel 2B1 Turboshaft EnginesMay 29, 2007Engine (ARRIEL 2B1)
2005-25-13Turbomeca Arriel 2B and 2B1 Turboshaft EnginesDec 28, 2005Engine (ARRIEL 2B1)Only with: Engines without modification TU22 incorporated.

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

Service Difficulty Reports (1)

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.

  • Air conditioning and pressurization · compressor · seizedNov 16, 2010

    PILOT REPORTED, DURING NORMAL FLIGHT, AIR COND SYS BEGAN TO BLOW WARM AIR FOLLOWED BY HYD SYS WARNING LIGHT ILLUMINATION. DUAL HYD SYS ALLOWED PILOT TO PERFORM PRECAUTIONARY LANDING WITHOUT INCIDENT. POST FLIGHT INVESTIGATION REVEALED THAT BOTH THE A/C COMPRESSOR DRIVE BELT AND THE ADJACENT HYD…

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

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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