- Manufacturer (registry)
- ALLISON
- Model
- T63-A-720
- Registry code
- 03083
- Installed in
- 23 registered aircraft
- Type
- Turbo-shaft
- Power
- 420 hp
Model codes come from the FAA registry’s reference file.
On this page
Airworthiness directives that may apply · 0
ADs whose products match this engine model. Each AD’s applicability may narrow it by serial number, part number or configuration.
No ADs matched this model
Registered aircraft · 23
N115SRCentral States Helicopters Inc · Wood River, NEN158GSSunny Sky LLC · Stacyville, IAN170FRNational Test Pilot School · Mojave, CA
See all 23 registered aircraftQuery 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 ('03083')
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 ('03083')
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 · 6
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 6 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
NTSB ERA24LA267Accident · Minor injuriesClass 3 · LimitedFinal reportGarlick Helicopters OH-58A+ · Cisco, GAA reported total loss of engine power for reasons that could not be determined.NTSB WPR20LA247Accident · Minor injuriesClass 3 · LimitedFinal reportBell OH58A · Holtville, CAThe total loss of engine power due to the decoupling of the engine's turbine and compressor sections, which resulted from improper maintenance.NTSB GAA17CA265Accident · No injuriesData collectionFinal reportRotorcraft Development OH-58A+ · Waterloo, ILThe pilot’s failure to see and avoid transmission wires while maneuvering at a low altitude.NTSB WPR13LA087Accident · Serious injuriesLimited investigationFinal reportBell OH-58C · Riverdale, CAA flight control malfunction while maneuvering for reasons that could not be determined because it was not possible to establish whether observed damage to the flight control assembly was the result of wreckage recovery efforts or a preexisting condition.NTSB WPR11LA303Accident · Serious injuriesLimited investigationFinal reportArrow Falcon Exporters OH-58C · Brentwood, CAThe failure of the main rotor mast due to fatigue cracking originating from corrosion pits.NTSB WPR09LA471Accident · Minor injuriesLimited investigationFinal reportArrow Falcon Exporters OH-58A+ · Myrtle Creek, ORA partial loss of engine power during takeoff for undetermined reasons.
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 ('03083')
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 ('03083')
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 · 8
Matched to this engine model through the registry, by N-number and event date, checked against the reported make and model.
Accident 20240618021919AGarlick Helicopters OH-58A+ · Crandell, GAOn approach to the area to be sprayed with the agricultural liquid the aircraft began to lose power and rotor RPM resulting in an emergency landing that resulted in major damage to the helicopter and some minor injuries to the pilot. The investigation…Accident 20200730011579AArrow Falcon Exporters OH-58A+ · Holtville, CAOn 7/30/2020 at approximately 2100 PDT, the pilot claims that engine power was lost while nearly complete with a 180 degree turn back (a turn from the north to the south) towards the field being sprayed during a part 137 operation. This course reversal…Accident 20170507008699ARotorcraft Development OH-58A+ · Waterloo, ILOn may 07, 2017 at approximately 1450CST OH-58A+ helicopter, N993YC contacted power lines while performing aerial spraying operations which caused the pilot to lose control of the aircraft. The aircraft crashed and landed in the field approximately 300 feet…Accident 20130108000529ABell OH-58C · Lemoore, CAPilot was spraying fields when he noticed in a turn that he could no longer turn the aircraft to the left by use of his cyclic. Pilot used pedals to turn aircraft but eventually ended up in a roll prior to an emergency landing. Aircraft landed on it's right…Incident 20120724015629IGarlick Helicopters OH-58C · Waukon, IAThe airman was conducting aerial application of chemical to a corn field. The airman stated that during his aerial survey of the field prior to the application he had identified the electrical transmission wires he eventually struck. The airman stated he had…Accident 20110703013749AArrow Falcon Exporters OH-58C · Brentwood, CAAircraft sustained substantial damage when it impacted terrain during agricultural aerial dispensing operations. Pilot stated he heard a loud noise before impacting the ground.Accident 20090927019969AArrowf OH58A · Roseburg, ORPilot reports departing from hill top with empty spray tanks to survey area to be sprayed that night when shortly after takeoff he heard a "repetitive popping sound" and the helicopter failed to accelerate normally. He said 100 percent torque was required to…Incident 19780103000759IBell 206B · White Lake, LAForced landing after power loss. Found loose fuel line.
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 ('03083')
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 ('03083')
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 · 10
SDR 2012FA0000185Mast · brokenACFT LANDED ON LOAD TRUCK. ACFT RECEIVED FUEL AND LOAD. PILOT FELT VIBRATION AND SHUTDOWN ACFT AND FOUND MAST POLE BROKEN.SDR 2010FA0000730Gear · fractured( YKER) ENGINE WAS SENT FOR REPAIR DUE TO GENERATING METAL. UPON DISASSEMBLY, FOUND THAT THE SHAFT ON THE GEAR HAD FRACTURED APPROX 2.325 IN FROM THE FWD END OF THE SHAFT AT A RADIUS OF APPROX 0.75 IN. THE RELATIVE MOTION BETWEEN THE PIECES WAS THE CAUSE OFSDR 2009FA0000661Gearshaft · brokenGEARSHAFT BROKE IN HALF CAUSING A CHIP LIGHT.SDR 2008FA0000909Separator · brokenCUSTOMER HAD CHIP LIGHT INDICATING METAL GENERATION IN ENG. INVESTIGATION/ DISASSEMBLY REVEALED THE AIR OIL SEPARATOR GEAR WAS BROKEN AT GEARFACE TO SHAFT LOCATION (WHERE THE 16 DRILLED HOLES CONVERGE AT GEAR CTR). THIS IS THE 4TH OR 5TH AIR OIL SEPARATOR GESDR 2008FA0000384Gear · brokenPILOT REPORTED ENGINE CHIP LIGHTS ON TAKEOFF. ABORTED MISSION AND RETURNED TO HELIPAD. ENG WAS REMOVED AND SENT FOR INVESTIGATION. ENG RECEIVED FOR REPAIR DUE TO ENG CHIP LIGHTS AND METAL IN OIL. DISASSEMBLY REVEALED AIR OIL SEPARATOR GEAR SHAFT HAD BROKEN SDR A101913Gear · fracturedENGINE WAS SENT FOR REPAIR DUE TO GENERATING METAL. UPON DISASSEMBLY FOUND THAT THE SHAFT ON THE FORWARD SIDE OF THE CENTRIFUGAL BREATHER GEAR WAS FRACTURED IN THE AREA OF THE RADIUS WHERE THE SHAFT JOINS THE GEAR. THE RELATIVE MOTION BETWEEN THE SHAFT AND TSDR A1019131Gear Shaft · fracturedENGINE WAS SENT FOR REPAIR DUE TO GENERATING METAL. UPON DISASSEMBLY FOUND THAT THE SHAFT ON THE FORWARD SIDE OF THE CENTRIFUGAL BREATHER GEAR WAS FRACTURED IN THE AREA OF THE RADIUS WHERE THE SHAFT JOINS THE GEAR. THE RELATIVE MOTION BETWEEN THE SHAFT AND TSDR CA040311006Separator · sheared(CAN) ON DISASSEMBLY OF THE GEARBOX ASSEMBLY, THE AIR OIL SEPARATOR GEAR SHAFT WAS FOUND SHEARED AT THE JUNCTION OF GEAR AND SHAFT. THE ENGINE WAS SENT TO THE SHOP FOR METAL CONTAMINATION. THE AIRCRAFT HAD PREVIOUSLY BEEN INVOLVED IN A WIRE STRIKE. THE ENGINSDR 2003F00512Fitting · crackedFOUND CRACK RADIATING FROM TOP AFT MOUNTING HOLE TO TRAILING EDGE. APPROX 1 INCH IN LENGTH. MILITARY BULLENTIN NR OH-58-03-ASAM-06 ADDRESSES A PROBLEM THE ARMY HAS INCURRED WITH THE OH-58 AIRCRAFT. MANY OF THESE AIRCRAFT ARE IN THE CIVIL AND PUBLIC USE ARENSDR 98ZZZX3814Case Halves · damagedLINER FLAKING - REMOVED AND REPLACED.
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 = 'T63A720' 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 = 'T63A720' 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.