- Manufacturer (registry)
- ROLLS-ROYC
- Model
- 250-C20J
- Registry code
- 54181
- Installed in
- 82 registered aircraft
- Type
- Turbo-shaft
- Power
- 420 hp
- Data sheet
- TCDSE4CE
- Holder
- Rolls-Royce Corporation
Model codes come from the FAA registry’s reference file.
On this page
Airworthiness directives that may apply · 12
ADs whose products match this engine model. Each AD’s applicability may narrow it by serial number, part number or configuration.
| 1977 | 1 |
|---|---|
| 1982 | 1 |
| 1989 | 1 |
| 1996 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2005 | 3 |
| 2006 | 2 |
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2022 | 1 |
Engine · Rolls-Royce 250-C20J
AD 2022-10-06Turbine SectionAD 2018-13-01Turbine GovernorAD 2006-16-04Inspection of the fuel nozzle screenAD 2006-13-06Gas producer rotor assembly tie boltsAD 2005-10-13Turbine energy absorbing ringAD 2004-26-09Compressor Adaptor CouplingsAD 2001-24-12Helical Torquemeter Gearshaft AssemblyAD 98-24-28Main Fuel Control BellowsAD 96-19-01Superior Air Parts Manufacture Approval (PMA) BearingsAD 88-17-01Fuel ControlsAD 82-24-05Control Assembly and Power Turbine Governor AssemblyAD 77-15-12Power Turbine Coupling NutSuperseded and historical ADs · 3
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 ('54181'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_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.
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 ('54181'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Registered aircraft · 82
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 ('54181')
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.
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 ('54181')
ORDER BY n_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB investigations · 13
Aircraft matched to this engine model through the registry, by N-number and event date, checked against the reported serial number, make and model.
Of 11 cases NTSB coded with a defining event. All defining events
Findings NTSB made part of the probable cause. A case can have several. All findings
Of 2 cases with NTSB’s older coding, defined in its coding manual.
NTSB CEN24FA287Accident · 1 fatalClass 3 · FieldPreliminary reportBell 206 · Nashua, IAOn July 29, 2024 about 1330 central standard time, a Bell 206-B3 Helicopter, N94XA, was destroyed when it was involved in an accident near Nashua, Iowa. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal Regulations Part…NTSB CEN24LA275Accident · Minor injuriesClass 4 · LimitedFinal reportBell 206B · Cuba City, WIThe pilot’s failure to maintain clearance from a wire during an agricultural application pass.NTSB CEN24LA172Accident · No injuriesClass 4 · LimitedFinal reportBell 206B · Baton Rouge, LAThe pilot’s loss of control during takeoff that resulted in a hard landing.NTSB WPR24LA067Accident · No injuriesClass 3 · LimitedFinal reportBell 206B · El Centro, CAAn in-flight failure of the engine-to-transmission driveshaft due to a fatigue fracture of the forward-most flex plate in the forward KAflex coupling that resulted from a loose bolt attachment between the flex plate and the forward driveshaft coupling.…NTSB ERA22FA383Accident · 2 fatalClass 3 · FieldFinal reportBell 206B · Whiteside, TNThe pilot’s failure to maintain clearance from the powerlines.NTSB CEN19LA318Accident · No injuriesClass 3 · LimitedFinal reportBell 206 · Hill City, SDA total loss of engine power for undetermined reasons, which resulted in a hard landing.NTSB CEN19LA269Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206 · Blair, NEThe loss of main rotor rpm for reasons that could not be determined based on the available evidence, which resulted in a hard landing.NTSB CEN19FA024Accident · 3 fatalField investigationFinal reportBell 206 · Uvalde, TXThe pilot's controlled flight into terrain during night visual meteorological conditions. Contributing to the accident was the pilot improper decision to inhibit the helicopter's terrain warning systems and flight at low altitude.NTSB ERA12LA210Accident · Minor injuriesLimited investigationFinal reportBell 206B · Titusville, FLThe flight instructor's attempted takeoff in gusting wind conditions while the student pilot was adjusting her anti-torque pedals, which resulted in a dynamic rollover event.NTSB WPR11CA101Accident · No injuriesData collectionFinal reportBell 206B3 · Three Forks, MTThe pilot’s inadequate use of throttle during the practice autorotation that resulted in a hard landing.NTSB ERA10TA292Accident · No injuriesFinal reportBell 206B · Memphis, TNThe pilot’s failure to maintain adequate rotor rpm and the certificated flight instructor’s delayed remedial action, which resulted in a hard landing.NTSB CHI07CA181Accident · No injuriesData collectionFinal reportBell 206B · Grand Forks, NDThe certified flight instructor's inadequate compensation for the gusting wind conditions and failure to maintain control of the helicopter during a hover for takeoff. A factor contributing to the accident was the gusting wind conditions.NTSB IAD96LA067Accident · No injuriesLimited investigationFinal reportBell 206B · Logan, WVthe pilot's failure to maintain an adequate fuel supply for the flight which resulted in a loss of engine power due to fuel exhaustion, and the loss of rotor rpm during the autorotation. The downhill sloping terrain was a related factor.
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 ('54181')
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.
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 ('54181')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
FAA incident reports · 19
Matched to this engine model through the registry, by N-number and event date, checked against the reported make and model.
Accident 20240729010369ABell 206B · Nashua, IAHelicopter contacted power lines causing the pilot to lose control and the helicopter to break apart, resulting in a crash.Accident 20240721017129ABell 206B · Cuba City, WIWhile applying aerial application the pilot was making a turn for the next swooth and struck the power lines. The cables pulled the aircraft to the ground causing a complete loss of the aircraft. The pilot survived with no substantial injuries.Accident 20240326004459ABell 206B · Baton Rouge, LAAccident on 3/26/2024 approx 1330 Pilot relevant flight time: Total helicopter time: 219.5 hrs. Turbine time: 118 hrs. Make and model: 79 hrs. Solo make and model: 23.7 Pilot is current Narrative: (via phone) Pilot was instructed to take the aircraft for a…
See all 19 incident reportsQuery 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 ('54181')
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.
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 ('54181')
ORDER BY event_date DESC, report_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Service difficulty reports · 58
SDR 2025F00130Drive Shaft · crackedDURING 12 MONTH INSPECTION FOUND CRACKS RADIATING FROM WHERE THE RIVETS ARE INSTALLED ON EITHER END ON ONE OF THE SEGMENTED RIVETED DRIVE SHAFT ASSEMBLY. THIS WAS DETECTED WITH A 10X MAGNIFYING GLASS. THE OTHER SEGMENTED SHAFTS CHECKED OUT OK. PART WITH REPLACSDR R73A20210315001Engine · making metalDURING CRUISE FLIGHT THE PILOT OBSERVED THE "ENGINE CHIP" CAUTION LIGHT ILLUMINATED. PIC LANDED SAFELY IN A NEARBY FOOTBALL FIELD. FOUND (1) SMALL METAL SLIVER ON THE ENGINE'S LOWER MAGNETIC PLUG.SDR CA190726010Indicator · malfunctioned(CAN) INDICATOR FOUND TO BE ROTATED IN TAIL ROTOR GEARBOX HOUSING. SIGHT GLASS REMOVED AND INDICATOR FOUND INSTALLED UPSIDE DOWN. UPSIDE DOWN INSTALLATION OCCURRED AT OVERHAUL OF TAIL ROTOR GEARBOX. UPSIDE DOWN INSTALLATION OF INDICATOR NEGATES THE LOCKING MEC
See all 58 difficulty reportsQuery 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 = '250C20J' 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.
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 = '250C20J' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
STCs that may be installed · 6
Approved for this engine 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 SE5511NMInstallation of compressor discharge pressue (PC) valve.STC SE00014ENInstallation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models.STC SE00027ENInstallation of Pratt & Whitney Engine Services Inc. Intellistart plus electronic control unit (ECU), P/N DPU-K-010 on the specified 250 engine models.STC SE492GLIncorporation of a fuel flow transducer.STC ST00037ATUnison igniter plugs, P/N 9044400-1.STC SQ00338ATUnison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106.
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_engine_model_stc.parquet'
WHERE engine_model_code IN ('54181')
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"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.
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_engine_model_stc.parquet'
WHERE engine_model_code IN ('54181')
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_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.