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Safran ARRIUS-2B2

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Engine model · Turbo-shaft · 642 hp · registry code 59991

Manufacturer (registry)
SAFRAN
Model
ARRIUS 2B2
Registry code
59991
Installed in
38 registered aircraft
Type
Turbo-shaft
Power
642 hp
Data sheet
TCDSE34NE
Holder
Safran Helicopter Engines S.A.

Model codes come from the FAA registry’s reference file.

On this page

Airworthiness directives that may apply · 8

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

2005In forceSuperseded2026
Superseded and historical ADs · 2
AD 2014-04-06Hydro-mechanical metering unit (HMU)HistoricalEffective Mar 31, 2014 · Replaced by AD 2021-17-05AD 2005-12-08Engine Electronic Control Unit (EECU)HistoricalEffective Jun 29, 2005 · Replaced by AD 2021-26-26
Query with SQL
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_engine_model_directive.parquet' WHERE engine_model_code IN ('59991'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

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Registered aircraft · 38

N159AHVanderbilt University Medical Center · Nashville, TNBuilt 2023 · S/N 2224N1FLRegistered aircraftBuilt 2022 · S/N 2168N1VRegistered aircraftBuilt 2023 · S/N 2247
See all 38 registered aircraft
Query with SQL
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 engine_model_code IN ('59991')
  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 · 1

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

Defining event, 2008 on

Of 1 case 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

NTSB CEN24LA053Accident · Minor injuriesClass 4 · LimitedFinal reportAirbus Helicopters Deutschland EC135T3 · Dodge Center, MNAn in-flight collision with a flock of birds.Nov 22, 2023 · N423NM · Substantial damage
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.engine_model_code IN ('59991')
  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 · 4

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

Incident 20260411010789IAirbus Helicopters Deutschland EC135T3 · Freeport, PADuring cruise flight (120 KTS / 1000 feet AGL), a very small bird the size of a sparrow, hit the left chin bubble about 3 inches below the support between the windscreen and the chin bubble. Bird remnants hit the pedals and made its way past the collective on…Apr 11, 2026 · N537ME · Minor damageIncident 20251113017489IEurocopter Espana EC135 T2+ · Monroe, LADuring cruise flight, the pilot observed "fadec fail" and "fli fail" messages for the #2 engine. The #2 engine was unresponsive to small collective changes. Pilot turned back to kmlu and declared an emergency, setting transponder to 7700. Pilot performed a…Nov 13, 2025 · N911XK · Minor damageIncident 20241023016359IAirbus Helicopters Deutschland EC135T3 · Winchester, TNWhile enroute from golden triangle regional airport (gtr) to allegheny county airport (agc), a turkey vulture impacted the co-pilot windscreen, injuring the shoulder of the aircraft technician occupying that seat. Pilot was able to make an emergency landing…Oct 23, 2024 · N589ME · Minor damageAccident 20231121016689AAirbus Helicopters Deutschland EC135T3 · Dodge Center, MNWhile returning to the aircraft base after departing a local hospital, the aircraft impacted a flock of birds and was substantially damaged. The aircraft was cruising at roughly 2200’ MSL or 1100’ AGL with the autopilot engaged and airspeed set to about…Nov 21, 2023 · N423NM · Substantial damage
Query with SQL
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 engine_model_code IN ('59991')
  ORDER BY event_date DESC, report_number 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.

Service difficulty reports · 89

SDR 2025FA0000765Fadec · failedSEVENTEEN MINUTES INTO THE FLIGHT, A FADEC FAIL 2 CAUTION ILLUMINATED. AT THAT TIME, THE #2 ENGINE TORQUE DECREASED FROM 58.8 TO 6.9, THEN INCREASED TO 19.9 WITHIN THREE SECONDS. THE #2 ENGINE TORQUE REMAINED AT 19.9 FOR THE REMAINDER OF THE FLIGHT. THE PILOT Nov 13, 2025 · N911XK · Urocop EC135T2 · Engine ControlsSDR QMLA2025081820088Control Unit · failedNR 2 ENG FADEC FAIL IN FLIGHT. SLIDE ON LANDING NO DAMAGE. TROUBLESHOT DOWN TO NR 2 ENGINE FADEC ( EECU ) INOPERATIVE. READ POWER TO CONNECTORS, SWAPPED EECU WITH NR 1 SIDE AND PROBLEM FOLLOWED. INSPECTED AIRCRAFT FOR OTHER DAMAGE OF SKIDS AND SKID PLATES. ALAug 18, 2025 · N105VU · Urocop EC135T2 · Fuel Controlling SystemSDR QMLA2025072620077Vhf Comm · faulted#1 VHF RADIO STOPPED TRANSMITTING. SHORTLY AFTER, DURING LEVEL FLIGHT, IFR, 6000MSL, 120KN, ON ATC VECTOR IN HEADING MODE AND THE NAV SOURCE IN ILS2, THE AUTOPILOT MADE AN UNCOMMANDED, ABRUPT LEFT TURN AND PITCH UP. THE MASTER CAUTION ILLUMINATED ALONG WITH AJul 24, 2025 · N831ME · Urocop EC135T2 · VHF Communications System
See all 89 difficulty reports
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 engine_model_key = 'ARRIUS2B2'
  ORDER BY difficulty_date 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.