The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 7, 2026

Pratt & Whitney R1340 series

1,230 aircraft on the U.S. register carry a Pratt & Whitney R1340 series engine, rated at about 600 horsepower. The North American AT-6 Texan is the model most often fitted with it (183 aircraft). The aircraft carrying it were built between 1933 and 2022.

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 Pratt & Whitney R1340 series. FAA spelling: R1340 SERIES.

When the aircraft were built by decade

By decade built, as a table
aircraft
19205
193016
1940310
1950181
196050
1970297
198091
199054
20004
20101
20201

What the FAA has certified, ordered and been told about the Pratt & Whitney R1340 series the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 58 failure reports with the FAA since 1995, 15 of them in the last ten years.

Failure reports 58 since · what operators and shops told the FAA

0247995000612118
Failure reports by year, as a table
reports
952
963
975
981
991
001
013
025
043
059
064
073
083
105
114
121
131
142
151
181

Parts most often reported as the reports name them

Cylinder6Engine4Cylinder Head3Exhaust Valve3Nut3Attach Angle2Roller2Strut2Angle1Battery1
Parts most reported, as a table
reports
Cylinder6
Engine4
Cylinder Head3
Exhaust Valve3
Nut3
Attach Angle2
Roller2
Strut2
Angle1
Battery1

Latest reports

2018-08-02Throttle Arm: worn
2015-05-19Cam: worn
2014-08-24Cylinder: fractured
2014-07-28Engine: power loss
2013-04-24Bearing: failed

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

These connections as data: /graph/engine/pratt-whitney-r1340-series.json · about the eFlight graph.

Aircraft newest certificates first · 1,230

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N7492U North American
AT-6D
Fixed-wing, single engine Flyimg Time LLC
Jenks, Oklahoma
Standard 2017-01-31 ValidFAA registration status code V: Valid registration. All codes
N5543X Aero Commander
S2R
Fixed-wing, single engine Croom Aviation LLC
Port Saint Joe, Florida
Restricted 2017-01-26 ValidFAA registration status code V: Valid registration. All codes
N64NA Hansen Robert C
P-64
Fixed-wing, single engine 64Na LLC
Rexburg, Idaho
Experimental 2017-01-17 ValidFAA registration status code V: Valid registration. All codes
N436WR Commonwealth Aircraft Corp
CA-16 MK 3
Fixed-wing, single engine Individual owner
Florida
Experimental 2016-12-14 ValidFAA registration status code V: Valid registration. All codes
N48119 North American-Banaire Entprs.
SNJ-4
Fixed-wing, single engine Individual owner
California
Standard 2016-12-08 ValidFAA registration status code V: Valid registration. All codes
N7011C North American
SNJ-4
Fixed-wing, single engine Individual owner
Texas
Restricted 2016-12-08 ValidFAA registration status code V: Valid registration. All codes
N4962X Rockwell International
S-2R
Fixed-wing, single engine Individual owner
California
Restricted 2016-12-07 ValidFAA registration status code V: Valid registration. All codes
N45918 Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Leider Geil LLC
Rancho Cucamonga, California
Experimental 2016-12-05 ValidFAA registration status code V: Valid registration. All codes
N6964K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Washington
Restricted 2016-11-30 ValidFAA registration status code V: Valid registration. All codes
N9804C North American
SNJ-5
Fixed-wing, single engine Individual owner
Texas
Standard 2016-11-18 ValidFAA registration status code V: Valid registration. All codes
N4350S Air Tractor Inc
AT-301
Fixed-wing, single engine Aura LLC
Elsie, Michigan
Restricted 2016-11-02 ValidFAA registration status code V: Valid registration. All codes
N489W Stearman
4CM-1
Fixed-wing, single engine Delta Tango CORP
Spokane, Washington
Standard 2016-10-24 ValidFAA registration status code V: Valid registration. All codes
N431BL Rockwell International
S-2R
Fixed-wing, single engine Johnson Airspray INC
Argyle, Minnesota
Restricted 2016-09-22 ValidFAA registration status code V: Valid registration. All codes
N45421 Air Tractor Inc
AT-401
Fixed-wing, single engine Ascend AG INC
Wall, South Dakota
Restricted 2016-09-22 ValidFAA registration status code V: Valid registration. All codes
N304GS Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Cascade Airways LLC
Corvallis, Oregon
Experimental 2016-09-15 ValidFAA registration status code V: Valid registration. All codes
N6538 Grumman
G-164A
Fixed-wing, single engine Individual owner
California
Restricted 2016-09-14 ValidFAA registration status code V: Valid registration. All codes
N1602D Lockheed
ELECTRA 10-E
Fixed-wing, multi-engine Atchison Amelia Earhart Foundation
Atchison, Kansas
Standard 2016-09-13 ValidFAA registration status code V: Valid registration. All codes
N5249 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Co-owned owner
North Dakota
Restricted 2016-08-30 ValidFAA registration status code V: Valid registration. All codes
N7678Z North American
AT-6C(SNJ-4)
Fixed-wing, single engine Simply Living LLC
Fort Myers, Florida
Standard 2016-08-30 ValidFAA registration status code V: Valid registration. All codes
N3663X Aero Commander
S2R
Fixed-wing, single engine Pietron Spraying INC
Larimore, North Dakota
Restricted 2016-08-09 ValidFAA registration status code V: Valid registration. All codes
N4002Q Ayres Corporation
S-2R
Fixed-wing, single engine Pietron Spraying INC
Larimore, North Dakota
Restricted 2016-08-09 ValidFAA registration status code V: Valid registration. All codes
N2878G North American
AT-6G
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2016-08-02 ValidFAA registration status code V: Valid registration. All codes
N78691 Noorduyn
UC-64A
Fixed-wing, single engine Individual owner
Alaska
Standard 2016-08-02 ValidFAA registration status code V: Valid registration. All codes
N6422D North American
SNJ-4
Fixed-wing, single engine Syf LLC
Okmulgee, Oklahoma
Standard 2016-07-19 ValidFAA registration status code V: Valid registration. All codes
N7902 Grumman
G-164A
Fixed-wing, single engine Individual owner
Texas
Restricted 2016-07-13 ValidFAA registration status code V: Valid registration. All codes
N7517 North American
AT-6D
Fixed-wing, single engine Individual owner
Oregon
Standard 2016-07-11 ValidFAA registration status code V: Valid registration. All codes
N127VF North American
AT-6C
Fixed-wing, single engine Woelbing Aviation LLC
Franksville, Wisconsin
Standard 2016-06-28 ValidFAA registration status code V: Valid registration. All codes
N747RA Boeing
E75
Fixed-wing, single engine Sanders Racing INC
Jasper, Alabama
Restricted 2016-06-22 ValidFAA registration status code V: Valid registration. All codes
N711WW Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Simmons Aviation Services LLC
Pawcatuck, Connecticut
Restricted 2016-06-20 ValidFAA registration status code V: Valid registration. All codes
N107FG North American
AT-6D
Fixed-wing, single engine Twin Lakes Aviation LLC
Edmond, Oklahoma
Standard 2016-06-16 ValidFAA registration status code V: Valid registration. All codes
N9065Z North American
SNJ-5
Fixed-wing, single engine Individual owner
South Carolina
Standard 2016-06-15 ValidFAA registration status code V: Valid registration. All codes
N55941 North American
AT-6
Fixed-wing, single engine Individual owner
California
Standard 2016-06-09 ValidFAA registration status code V: Valid registration. All codes
N9871C North American
T-6G
Fixed-wing, single engine Individual owner
Texas
Standard 2016-05-20 ValidFAA registration status code V: Valid registration. All codes
N3158G North American
T-6G
Fixed-wing, single engine N3158G LLC
Mesa, Arizona
Standard 2016-05-17 ValidFAA registration status code V: Valid registration. All codes
N7055H North American
AT-6C
Fixed-wing, single engine Co-owned owner
California
Standard 2016-05-12 ValidFAA registration status code V: Valid registration. All codes
N889ER North American
AT-6F
Fixed-wing, single engine Individual owner
Texas
Standard 2016-05-03 ValidFAA registration status code V: Valid registration. All codes
N31623 Air Tractor Inc
AT-301
Fixed-wing, single engine Pitt & Pitt INC
Wapato, Washington
Restricted 2016-04-25 ValidFAA registration status code V: Valid registration. All codes
N7690 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Mcbryant Gene
Cordele, Georgia
Restricted 2016-04-25 ValidFAA registration status code V: Valid registration. All codes
N3628T Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Mcclung Aerial Spraying INC
Big Springs, Nebraska
Restricted 2016-04-12 ValidFAA registration status code V: Valid registration. All codes
N9943T North American
T-6G
Fixed-wing, single engine Da Plane LLC
Longmont, Colorado
Standard 2016-04-11 ValidFAA registration status code V: Valid registration. All codes
N9071Z Air Tractor Inc
AT-401B
Fixed-wing, single engine Johnson Airspray INC
Argyle, Minnesota
Restricted 2016-03-09 ValidFAA registration status code V: Valid registration. All codes
N2761A North American
T-6G
Fixed-wing, single engine Co-owned owner
Washington
Standard 2016-03-04 ValidFAA registration status code V: Valid registration. All codes
N130FB Grumman
G-73
Fixed-wing, multi-engine Individual owner
Nevada
Standard 2016-02-12 ValidFAA registration status code V: Valid registration. All codes
N66JB North American
T-6G
Fixed-wing, single engine Warbird Aviation Services LLC
Greensburg, Pennsylvania
Standard 2016-02-05 ValidFAA registration status code V: Valid registration. All codes
N2813G North American
T-6G
Fixed-wing, single engine Individual owner
Kentucky
Standard 2016-01-29 ValidFAA registration status code V: Valid registration. All codes
N4591 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
Texas
Restricted 2016-01-22 ValidFAA registration status code V: Valid registration. All codes
N8222K Gulfstream-Schweizer A/C Corp
GULFSTREAM AM G-164B
Fixed-wing, single engine Individual owner
Texas
Restricted 2016-01-22 ValidFAA registration status code V: Valid registration. All codes
N9965 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Houston Farms LLC
Murray, Kentucky
Restricted 2016-01-06 ValidFAA registration status code V: Valid registration. All codes
N916DC North American
SNJ-6
Fixed-wing, single engine American Airpower Heritage Flying Museum INC
Dallas, Texas
Standard 2015-12-29 ValidFAA registration status code V: Valid registration. All codes
N4351S Air Tractor Inc
AT-301
Fixed-wing, single engine Individual owner
Texas
Restricted 2015-12-18 ValidFAA registration status code V: Valid registration. All codes
N6555K Grumman Acft Eng Cor-Schweizer
G-164C
Fixed-wing, single engine Jones Flying Service
Biggs, California
Restricted 2015-12-12 ValidFAA registration status code V: Valid registration. All codes
N9589C North American
SNJ-4
Fixed-wing, single engine Sooner Warbirds LLC
Norman, Oklahoma
Restricted 2015-12-12 ValidFAA registration status code V: Valid registration. All codes
N6680K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Johnson Fertilizer CO INC
Sayre, Oklahoma
Restricted 2015-12-05 ValidFAA registration status code V: Valid registration. All codes
N3169D Air Tractor Inc
AT-301
Fixed-wing, single engine Classic Arrow INC
Hutchinson, Minnesota
Restricted 2015-10-26 ValidFAA registration status code V: Valid registration. All codes
N3646G North American
AT-6D
Fixed-wing, single engine American Airpower Heritage Flying Museum INC
Dallas, Texas
Standard 2015-10-23 ValidFAA registration status code V: Valid registration. All codes
N8893Q Aero Commander
S2R
Fixed-wing, single engine Gustin Aviation INC
Lewiston, Idaho
Restricted 2015-10-16 ValidFAA registration status code V: Valid registration. All codes
N6696K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Valley Air Service LTD
Colusa, California
Restricted 2015-10-09 ValidFAA registration status code V: Valid registration. All codes
N1206S Ayres Corporation
S2R-600
Fixed-wing, single engine Gustin Aviation INC
Lewiston, Idaho
Restricted 2015-10-06 ValidFAA registration status code V: Valid registration. All codes
N57418 North American
AT-6B
Fixed-wing, single engine Individual owner
California
Standard 2015-09-16 ValidFAA registration status code V: Valid registration. All codes
N1689C North American
SNJ-5
Fixed-wing, single engine Blue Prop Warbirds LLC
Long Lake, Minnesota
Standard 2015-09-01 ValidFAA registration status code V: Valid registration. All codes
N7969C North American
SNJ-5
Fixed-wing, single engine Condor Squadron Officers & Airmens Assoc INC
Van Nuys, California
Standard 2015-08-21 ValidFAA registration status code V: Valid registration. All codes
N4289C North American
HARVARD 4
Fixed-wing, single engine Dms Aviation Services LLC
Wildwood, Missouri
Experimental 2015-08-14 ValidFAA registration status code V: Valid registration. All codes
N1012T Air Tractor Inc
AT-401
Fixed-wing, single engine Johnson Airspray INC
Argyle, Minnesota
Restricted 2015-07-22 ValidFAA registration status code V: Valid registration. All codes
N757LF North American
AT-6D
Fixed-wing, single engine Individual owner
Virginia
Standard 2015-07-13 ValidFAA registration status code V: Valid registration. All codes
N5599X Aero Commander
S2R
Fixed-wing, single engine Lakeview Aviation INC
Sanborn, North Dakota
Restricted 2015-07-02 ValidFAA registration status code V: Valid registration. All codes
N8916H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Eagle Vistas LLC
Williston, Florida
Restricted 2015-07-01 ValidFAA registration status code V: Valid registration. All codes
N390TB North American
T-6D
Fixed-wing, single engine Individual owner
California
Standard 2015-05-18 ValidFAA registration status code V: Valid registration. All codes
N7406C North American
SNJ-4
Fixed-wing, single engine Hayden Aviation LLC
Rhome, Texas
Standard 2015-05-12 ValidFAA registration status code V: Valid registration. All codes
N884TC Canadian Car & Foundry
HARVARD MK IV
Fixed-wing, single engine Vintage Flying LLC
Greenwell Springs, Louisiana
Experimental 2015-04-29 ValidFAA registration status code V: Valid registration. All codes
N3097N Ayres Corporation
S2R-R1340
Fixed-wing, single engine Tri County Sprayers INC
Hamlin, Texas
Restricted 2015-04-21 ValidFAA registration status code V: Valid registration. All codes
N8960H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
Maryland
Restricted 2015-04-13 ValidFAA registration status code V: Valid registration. All codes
N7078C North American
AT-6C
Fixed-wing, single engine Hawks Zero Q 3 LLC
Sonoma, California
Standard 2015-04-08 ValidFAA registration status code V: Valid registration. All codes
N8150K Gulfstream-Schweizer A/C Corp
GULFSTREAM AM G-164B
Fixed-wing, single engine Kuther Air Service
Nezperce, Idaho
Restricted 2015-04-07 ValidFAA registration status code V: Valid registration. All codes
N8753S Air Tractor Inc
AT-301
Fixed-wing, single engine Individual owner
Oklahoma
Restricted 2015-04-07 ValidFAA registration status code V: Valid registration. All codes
N4109C North American
T-6G
Fixed-wing, single engine Eastern Stearman INC Trustee
Leesburg, Virginia
Standard 2015-03-23 ValidFAA registration status code V: Valid registration. All codes
N5485V North American
SNJ-6
Fixed-wing, single engine Individual owner
Colorado
Standard 2015-03-17 ValidFAA registration status code V: Valid registration. All codes
N611SS Grumman
G-73
Fixed-wing, multi-engine Individual owner
Nevada
Standard 2015-03-16 ValidFAA registration status code V: Valid registration. All codes
N61370 Ayres Corporation
S-2R
Fixed-wing, single engine Scott Ts Ag-Flyin INC
Colquitt, Georgia
Restricted 2015-03-12 ValidFAA registration status code V: Valid registration. All codes
N131CE Ayres Corporation
S2R-600
Fixed-wing, single engine Donalds Air Park INC
Pantego, North Carolina
Restricted 2015-03-09 ValidFAA registration status code V: Valid registration. All codes
N310JH North American
T-6G
Fixed-wing, single engine At6 Texan LLC
Wilmington, Delaware
Standard 2015-02-11 ValidFAA registration status code V: Valid registration. All codes
N6670K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Nebraska
Restricted 2015-01-06 ValidFAA registration status code V: Valid registration. All codes
N3169G North American
AT-6F
Fixed-wing, single engine Condor Squadron Officers & Airmens Association
Van Nuys, California
Standard 2014-12-30 ValidFAA registration status code V: Valid registration. All codes
N5613X Aero Commander
S2R
Fixed-wing, single engine Bob Ruhe AG Service LLC
Leipsic, Ohio
Restricted 2014-12-23 ValidFAA registration status code V: Valid registration. All codes
N164AZ Grumman Acft Eng Cor-Schweizer
G-164C
Fixed-wing, single engine Individual owner
Illinois
Restricted 2014-11-07 ValidFAA registration status code V: Valid registration. All codes
N8172K Gulfstream-Schweizer A/C Corp
GULFSTREAM AM G-164B
Fixed-wing, single engine Buntings Dusting INC
Berlin, Maryland
Restricted 2014-10-30 ValidFAA registration status code V: Valid registration. All codes
N246WR North American
SNJ-5
Fixed-wing, single engine Individual owner
Alabama
Standard 2014-10-23 ValidFAA registration status code V: Valid registration. All codes
N8978Q Aero Commander
S2R
Fixed-wing, single engine Johnson Airspray INC
Argyle, Minnesota
Restricted 2014-10-23 ValidFAA registration status code V: Valid registration. All codes
N407EZ North American
HARVARD III
Fixed-wing, single engine Hoge Aviation LLC
Pipersville, Pennsylvania
Standard 2014-10-20 ValidFAA registration status code V: Valid registration. All codes
N8511S Air Tractor Inc
AT-301
Fixed-wing, single engine Individual owner
Texas
Restricted 2014-10-08 ValidFAA registration status code V: Valid registration. All codes
N4623 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
Washington
Restricted 2014-09-29 ValidFAA registration status code V: Valid registration. All codes
N1005N Air Tractor Inc
AT-401
Fixed-wing, single engine Individual owner
South Dakota
Restricted 2014-09-25 ValidFAA registration status code V: Valid registration. All codes
N812BC North American
SNJ-5
Fixed-wing, single engine River Birch CO
Doylestown, Pennsylvania
Standard 2014-09-09 ValidFAA registration status code V: Valid registration. All codes
N3633S Schweizer Aircraft Corp
G-164B
Fixed-wing, single engine Individual owner
Texas
Restricted 2014-09-04 ValidFAA registration status code V: Valid registration. All codes
N725E Noorduyn
UC-64A
Fixed-wing, single engine Alaska Aviation Museum
Anchorage, Alaska
Standard 2014-09-02 ValidFAA registration status code V: Valid registration. All codes
N44720 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Abidance INC
Winthrop, Washington
Restricted 2014-08-14 ValidFAA registration status code V: Valid registration. All codes
N8541B North American
T-6D
Fixed-wing, single engine Air Corriente LLC
Wilmington, Delaware
Standard 2014-08-08 ValidFAA registration status code V: Valid registration. All codes
N157DC North American
T-6G
Fixed-wing, single engine Experimental Aircraft Association INC
Oshkosh, Wisconsin
Standard 2014-07-30 ValidFAA registration status code V: Valid registration. All codes
N8878Q Aero Commander
S2R
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2014-07-09 ValidFAA registration status code V: Valid registration. All codes
N7979C North American
AT-6D
Fixed-wing, single engine Co-owned owner
Washington
Standard 2014-07-01 ValidFAA registration status code V: Valid registration. All codes
N991GM North American
AT-6C
Fixed-wing, single engine Mcaviation INC
Wilmington, Delaware
Standard 2014-07-01 ValidFAA registration status code V: Valid registration. All codes
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.