The U.S. aircraft register, updated daily
Engines · turboshaft · data as of October 23, 2026

Allison (Rolls-Royce) T63 series

46 aircraft on the U.S. register carry an Allison (Rolls-Royce) T63 series engine, rated at about 250 horsepower. The Bell OH-58 is the model most often fitted with it (24 aircraft). The aircraft carrying it were built between 1968 and 2005.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Allison (Rolls-Royce) T63 series. FAA spelling: T63 SERIES.

Fitted to model families

Bell OH-5824Garlick Helicopters Inc OH-587Hughes 369 500 series helicopters4Arrow Falcon Exporters Inc OH-583Arro Falcon Exporters OH-58A1Bell 206 JetRanger and LongRanger1Bell/Reynolds Darryl OH-58A1Flight Research Inc FRI H58C1Hughes OH-61Quatacker Mike BELL/MQ0H581Schotanus Myron BELL/MSOH581Spears Wayne SPEARS 581
Model families, as a table
aircraft
Bell OH-5824
Garlick Helicopters Inc OH-587
Hughes 369 500 series helicopters4
Arrow Falcon Exporters Inc OH-583
Arro Falcon Exporters OH-58A1
Bell 206 JetRanger and LongRanger1
Bell/Reynolds Darryl OH-58A1
Flight Research Inc FRI H58C1
Hughes OH-61
Quatacker Mike BELL/MQ0H581
Schotanus Myron BELL/MSOH581
Spears Wayne SPEARS 581

Bell OH-58 · Garlick Helicopters Inc OH-58 · Hughes 369 500 series helicopters · Arrow Falcon Exporters Inc OH-58 · Arro Falcon Exporters OH-58A · Bell 206 JetRanger and LongRanger · Bell/Reynolds Darryl OH-58A · Flight Research Inc FRI H58C · Hughes OH-6 · Quatacker Mike BELL/MQ0H58

Kind of aircraft

By kind, as a table
aircraftshare
Helicopters46100%

When the aircraft were built by decade

By decade built, as a table
aircraft
19608
197021
20007

What the FAA has certified, ordered and been told about the Allison (Rolls-Royce) T63 series the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 1 failure report with the FAA since 1995, 1 of them in the last ten years.

Failure reports 1 since · what operators and shops told the FAA

00011103
Failure reports by year, as a table
reports
031

Parts most often reported as the reports name them

Parts most reported, as a table
reports
Transceiver1

Latest reports

2003-07-07Transceiver: inoperative

Approved replacement parts 24 parts manufacturer approvals

Parts a company other than the maker may make for this engine and sell as FAA-approved. The companies holding the most:

Most often: ring (4), washer (1), valve (1), seal (1), screw (1), poppet seat (1), poppet (1), packing (1), nut (1), lever (1).

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Biggest operators
Airworthiness

The whole map of how records connect · these connections as data: /graph/engine/allison-rolls-royce-t63-series.json.

Aircraft newest certificates first · 46

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N446EA Arrow Falcon Exporters Inc
OH-58A+
Rotorcraft S R Baron INC
Brainerd, Minnesota
Restricted 2026-08-16 ValidFAA registration status code V: Valid registration. All codes
N310SP Garlick Helicopters Inc
OH-58A
Rotorcraft Rc Aviation INC
Lumpkin, Georgia
Restricted 2026-07-23 ValidFAA registration status code V: Valid registration. All codes
N798WS Spears Wayne
SPEARS 58
Rotorcraft Seley CORP
Ketchikan, Alaska
Experimental 2026-03-17 ValidFAA registration status code V: Valid registration. All codes
N45780 Hughes
369
Rotorcraft Nelson Aviation LLC
Crown Point, Indiana
Experimental 2025-08-15 ValidFAA registration status code V: Valid registration. All codes
N5800K Bell
OH-58A
Rotorcraft Blair Helicopter Service INC
Lemoore, California
Restricted 2025-03-07 ValidFAA registration status code V: Valid registration. All codes
N6249X Hughes
OH-6A
Rotorcraft Reynolds Aviation LLC
Lewes, Delaware
Standard 2025-02-25 ValidFAA registration status code V: Valid registration. All codes
N288NS Bell
OH-58A
Rotorcraft Mbc Leasing LLC
Virden, Illinois
Restricted 2024-03-01 ValidFAA registration status code V: Valid registration. All codes
N72365 Bell
206A-1
Rotorcraft Glacier Aviation INC
Olympia, Washington
Experimental 2024-02-17 ValidFAA registration status code V: Valid registration. All codes
N727LA Bell
OH-58A
Rotorcraft Individual owner
Texas
Restricted 2023-12-13 ValidFAA registration status code V: Valid registration. All codes
N387RF Hughes
369A
Rotorcraft Mid America Flight Museum
Mount Pleasant, Texas
Experimental 2023-08-26 ValidFAA registration status code V: Valid registration. All codes
N173FR Flight Research Inc
FRI H58C
Rotorcraft National Test Pilot School
Mojave, California
Experimental 2023-05-25 ValidFAA registration status code V: Valid registration. All codes
N913HP Bell
OH-58C
Rotorcraft Hog Air Aviation INC
Pargould, Arkansas
Experimental 2022-12-27 ValidFAA registration status code V: Valid registration. All codes
N654EA Bell
OH-58A
Rotorcraft Edgefield Aviation LLC
Sandy, Oregon
Restricted 2022-09-17 ValidFAA registration status code V: Valid registration. All codes
N919AU Bell
OH-58A
Rotorcraft Knox County Sheriffs Office
Knoxville, Tennessee
Restricted 2022-05-19 ValidFAA registration status code V: Valid registration. All codes
N502MC Arro Falcon Exporters
OH-58A
Rotorcraft Individual owner
North Dakota
Restricted 2022-03-21 ValidFAA registration status code V: Valid registration. All codes
N965MC Bell
OH-58A
Rotorcraft Individual owner
North Dakota
Restricted 2022-03-21 ValidFAA registration status code V: Valid registration. All codes
N1123S Bell
OH-58A
Rotorcraft Individual owner
California
Restricted 2021-04-05 ValidFAA registration status code V: Valid registration. All codes
N411NS Bell
OH-58A
Rotorcraft Custom Air LLC
Louisville, Mississippi
Restricted 2021-03-24 ValidFAA registration status code V: Valid registration. All codes
N831SD Arrow Falcon Exporters Inc
OH-58A+
Rotorcraft Tri Rotor Spray & Chemical
Ulysses, Kansas
Restricted 2021-02-03 ValidFAA registration status code V: Valid registration. All codes
N176SJ Bell
OH-58A
Rotorcraft Tri Rotor Spray & Chemical
Ulysses, Kansas
Restricted 2020-04-23 ValidFAA registration status code V: Valid registration. All codes
N445EA Bell
OH-58A
Rotorcraft Edgefield Aviation LLC
Sandy, Oregon
Restricted 2019-05-14 ValidFAA registration status code V: Valid registration. All codes
N132HD Bell
OH-58A
Rotorcraft Triple F Flying INC
Benton, Pennsylvania
Restricted 2019-03-18 ValidFAA registration status code V: Valid registration. All codes
N503DR Arrow Falcon Exporters Inc
OH-58C
Rotorcraft Dat Aircraft LLC
Lewes, Delaware
Restricted 2016-04-18 ValidFAA registration status code V: Valid registration. All codes
N58479 Hughes
369A (OH-6A)
Rotorcraft Usda Aphis Ws Atoc
Cedar City, Utah
Standard 2016-01-22 ValidFAA registration status code V: Valid registration. All codes
N82857 Bell
OH-58C
Rotorcraft Tri Rotor Spray & Chemical
Ulysses, Kansas
Restricted 2015-09-02 ValidFAA registration status code V: Valid registration. All codes
N1851W Garlick Helicopters Inc
OH-58C
Rotorcraft Individual owner
North Dakota
Experimental 2015-08-14 ValidFAA registration status code V: Valid registration. All codes
N844NS Bell
OH-58A
Rotorcraft Individual owner
North Dakota
Restricted 2015-02-27 ValidFAA registration status code V: Valid registration. All codes
N82851 Bell
OH-58A
Rotorcraft Co-owned owner
Oklahoma
Experimental 2014-12-24 ValidFAA registration status code V: Valid registration. All codes
N36FA Bell
OH-58A
Rotorcraft Tri Rotor Spray & Chemical
Ulysses, Kansas
Restricted 2014-05-16 ValidFAA registration status code V: Valid registration. All codes
N585SD Bell
OH-58C
Rotorcraft Individual owner
Texas
Restricted 2014-02-24 ValidFAA registration status code V: Valid registration. All codes
N637HA Garlick Helicopters Inc
OH-58C
Rotorcraft Helicopter Applicators INC
Gettysburg, Pennsylvania
Restricted 2014-02-19 ValidFAA registration status code V: Valid registration. All codes
N436SD Bell
OH-58C
Rotorcraft Malolo LLC
San Luis Obispo, California
Experimental 2013-07-22 ValidFAA registration status code V: Valid registration. All codes
N179NS Bell
OH-58C
Rotorcraft Individual owner
North Dakota
Restricted 2010-08-17 ValidFAA registration status code V: Valid registration. All codes
N931CC Bell/Reynolds Darryl
OH-58A
Rotorcraft Tri-Rotor Spray & Chemical
Ulysses, Kansas
Experimental 2009-09-03 ValidFAA registration status code V: Valid registration. All codes
N659HA Bell
OH-58A
Rotorcraft Helicopter Applicators INC
Gettysburg, Pennsylvania
Experimental 2008-01-14 ValidFAA registration status code V: Valid registration. All codes
N258CS Schotanus Myron
BELL/MSOH58
Rotorcraft Sierra Flite LLC
Camden, Delaware
Experimental 2006-10-04 ValidFAA registration status code V: Valid registration. All codes
N888US Hughes
369A
Rotorcraft Am Air Service LLC
Green Oaks, Illinois
Standard 2006-06-28 ValidFAA registration status code V: Valid registration. All codes
N282W Garlick Helicopters Inc
OH-58A+
Rotorcraft Central States Helicopters INC
Wood River, Nebraska
Restricted 2005-06-20 ValidFAA registration status code V: Valid registration. All codes
N777HQ Quatacker Mike
BELL/MQ0H58
Rotorcraft Individual owner
California
Experimental 2005-04-21 ValidFAA registration status code V: Valid registration. All codes
N128NS Garlick Helicopters Inc
OH-58A+
Rotorcraft Custom Air LLC
Louisville, Mississippi
Restricted 2004-10-06 ValidFAA registration status code V: Valid registration. All codes
N354NS Bell
OH-58C
Rotorcraft Custom Air LLC
Louisville, Mississippi
Restricted 2004-08-17 ValidFAA registration status code V: Valid registration. All codes
N637RA Garlick Helicopters Inc
OH-58A
Rotorcraft Individual owner
Texas
Restricted 2004-07-13 ValidFAA registration status code V: Valid registration. All codes
N904SF Bell
OH-58A
Rotorcraft Johnson Airspray INC
Argyle, Minnesota
Experimental 2003-07-31 ValidFAA registration status code V: Valid registration. All codes
N588MP Bell
OH-58A
Rotorcraft Tri Rotor Spray & Chemical INC
Ulysses, Kansas
Restricted 2003-06-18 ValidFAA registration status code V: Valid registration. All codes
N59MH Garlick Helicopters Inc
OH-58A+
Rotorcraft Maine Helicopters INC
Whitefield, Maine
Restricted 1999-01-13 ValidFAA registration status code V: Valid registration. All codes
N911CC Bell
OH-58C
Rotorcraft Individual owner
Texas
Restricted 1998-08-21 ValidFAA registration status code V: Valid registration. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 23, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.