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

Pratt & Whitney R-985 series

1,594 aircraft on the U.S. register carry a Pratt & Whitney R-985 series engine, rated at about 450 horsepower. The Boeing A75 Stearman Kaydet is the model most often fitted with it (236 aircraft). The aircraft carrying it were built between 1929 and 2013.

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 R-985 series. FAA spelling: R-985 SERIES.

When the aircraft were built by decade

By decade built, as a table
aircraft
192013
193063
1940622
1950318
1960114
1970105
198010
199033
20006
20102

What the FAA has certified, ordered and been told about the Pratt & Whitney R-985 series the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 80 failure reports with the FAA since 1995, 23 of them in the last ten years.

Failure reports 80 since · what operators and shops told the FAA

024689500051015217
Failure reports by year, as a table
reports
953
962
973
981
994
002
016
028
035
047
056
063
077
082
095
103
112
122
132
142
152
161
172

Parts most often reported as the reports name them

Cylinder8Engine6Bulkhead3Piston3Pump3Spar3Bearing2Bolt2Carburetor2Control Cable2
Parts most reported, as a table
reports
Cylinder8
Engine6
Bulkhead3
Piston3
Pump3
Spar3
Bearing2
Bolt2
Carburetor2
Control Cable2

Latest reports

2017-10-06Bearing: failed
2017-07-20Drag Link: damaged
2016-07-20Pushrod: broken
2015-08-18Fitting: corroded
2015-04-03Balance Weight: loose

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-r-985-series.json · about the eFlight graph.

Aircraft newest certificates first · 1,594

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N15AL Grumman American Avn. Corp.
G-164
Fixed-wing, single engine Co-owned owner
Indiana
Restricted 2018-07-09 ValidFAA registration status code V: Valid registration. All codes
N67735 Beech
D17S
Fixed-wing, single engine Individual owner
Maine
Standard 2018-07-06 ValidFAA registration status code V: Valid registration. All codes
N1178V Beech
D17S
Fixed-wing, single engine Individual owner
Nevada
Multiple 2018-06-19 ValidFAA registration status code V: Valid registration. All codes
N88KD Beech
AT-11
Fixed-wing, multi-engine City of Big Spring Texas
Big Spring, Texas
Standard 2018-06-19 ValidFAA registration status code V: Valid registration. All codes
N500AM Beech
AT-11
Fixed-wing, multi-engine Individual owner
District of Columbia
Experimental 2018-05-30 ValidFAA registration status code V: Valid registration. All codes
N666FA Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Co-owned owner
Indiana
Restricted 2018-05-15 ValidFAA registration status code V: Valid registration. All codes
N342KG Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Aviation Services of Grady County INC
Pelham, Georgia
Restricted 2018-05-10 ValidFAA registration status code V: Valid registration. All codes
N9501H Boeing
A75L3
Fixed-wing, single engine Co-owned owner
North Dakota
Restricted 2018-05-03 ValidFAA registration status code V: Valid registration. All codes
N44562 Beech
D17S
Fixed-wing, single engine Individual owner
Illinois
Standard 2018-04-20 ValidFAA registration status code V: Valid registration. All codes
N67251 Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine No See Um Lodge INC
Forks, Washington
Standard 2018-04-20 ValidFAA registration status code V: Valid registration. All codes
N68421 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Minnesota
Restricted 2018-04-18 ValidFAA registration status code V: Valid registration. All codes
N941MG Boeing
A75N1(PT17)
Fixed-wing, single engine Unusual Attitudes INC
Union City, New Jersey
Restricted 2018-04-16 Reports overdueFAA registration status code N: Non-citizen corporation that has not returned its flight-hour reports. All codes
N87692 Beech
C-45H
Fixed-wing, multi-engine Individual owner
Kansas
Restricted 2018-04-09 ValidFAA registration status code V: Valid registration. All codes
N6100C Beech
TC-45G
Fixed-wing, multi-engine Individual owner
Minnesota
Standard 2018-04-04 ValidFAA registration status code V: Valid registration. All codes
N9000P Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Individual owner
Minnesota
Restricted 2018-04-04 ValidFAA registration status code V: Valid registration. All codes
N777CH Boeing
E75
Fixed-wing, single engine Individual owner
Georgia
Standard 2018-03-29 ValidFAA registration status code V: Valid registration. All codes
N56330 Consolidated Vultee
BT-13A
Fixed-wing, single engine Egmond Aircraft LLC
Lewes, Delaware
Standard 2018-03-28 ValidFAA registration status code V: Valid registration. All codes
N53493 Boeing
PT-17
Fixed-wing, single engine Stearman Pt 17 LLC
Chowchilla, California
Standard 2018-03-26 ValidFAA registration status code V: Valid registration. All codes
N45064 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Co-owned owner
Missouri
Restricted 2018-03-20 ValidFAA registration status code V: Valid registration. All codes
N218DL Boeing
B75N1
Fixed-wing, single engine Kaydet 218 Group LLC
Woodland, Georgia
Standard 2018-03-19 ValidFAA registration status code V: Valid registration. All codes
N450CJ Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Standard 2018-03-15 ValidFAA registration status code V: Valid registration. All codes
N5524N Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Washington
Standard 2018-03-14 ValidFAA registration status code V: Valid registration. All codes
N67598 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
California
Restricted 2018-03-14 ValidFAA registration status code V: Valid registration. All codes
N939X Grumman
G-164A
Fixed-wing, single engine Individual owner
Louisiana
Restricted 2018-03-14 ValidFAA registration status code V: Valid registration. All codes
N18445 Stinson
SR-9F
Fixed-wing, single engine Co-owned owner
Washington
Standard 2018-03-06 ValidFAA registration status code V: Valid registration. All codes
N95RC Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Kenmore Air Harbor LLC
Kenmore, Washington
Multiple 2018-01-23 ValidFAA registration status code V: Valid registration. All codes
N930R Beech
E18S
Fixed-wing, multi-engine Individual owner
Montana
Standard 2018-01-11 ValidFAA registration status code V: Valid registration. All codes
N19131 Duramold
F46A
Fixed-wing, single engine Western Antique Aeroplane and Automobile Museum
Hood River, Oregon
Standard 2017-12-29 ValidFAA registration status code V: Valid registration. All codes
N1018A Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Blue Aircraft LLC
Ketchikan, Alaska
Standard 2017-12-27 ValidFAA registration status code V: Valid registration. All codes
N37756 Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Blue Aircraft LLC
Ketchikan, Alaska
Standard 2017-12-27 ValidFAA registration status code V: Valid registration. All codes
N5160G Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Blue Aircraft LLC
Ketchikan, Alaska
Standard 2017-12-27 ValidFAA registration status code V: Valid registration. All codes
N68010 Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Blue Aircraft LLC
Ketchikan, Alaska
Standard 2017-12-27 ValidFAA registration status code V: Valid registration. All codes
N924J Beech
E18S
Fixed-wing, multi-engine
Standard 2017-12-26 ValidFAA registration status code V: Valid registration. All codes
N8260Q Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Indiana
Standard 2017-12-20 ValidFAA registration status code V: Valid registration. All codes
N4787V Boeing
E75
Fixed-wing, single engine Gold Cap LLC
Bremerton, Washington
Standard 2017-12-11 ValidFAA registration status code V: Valid registration. All codes
N237 Bellanca
CH400 SKYROCKET
Fixed-wing, single engine Shannon Air Museum LLC
Fredericksburg, Virginia
Experimental 2017-12-06 ValidFAA registration status code V: Valid registration. All codes
N61250 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Mississippi
Standard 2017-12-04 ValidFAA registration status code V: Valid registration. All codes
N555BR Boeing
E75
Fixed-wing, single engine Individual owner
Iowa
Standard 2017-12-01 ValidFAA registration status code V: Valid registration. All codes
N38AK Dehavilland
DHC-2
Fixed-wing, single engine Redemption INC
Kodiak, Alaska
Restricted 2017-11-29 ValidFAA registration status code V: Valid registration. All codes
N896X Grumman
G-164A
Fixed-wing, single engine Major Ken'S Flying Service LLC
Colfax, North Dakota
Restricted 2017-11-29 ValidFAA registration status code V: Valid registration. All codes
N6652Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine O & K Aviation INC
Newport, Arkansas
Restricted 2017-11-28 ValidFAA registration status code V: Valid registration. All codes
N22BR Beech
H-18
Fixed-wing, multi-engine Dakota Express LLC
Wilmington, Delaware
Standard 2017-11-14 ValidFAA registration status code V: Valid registration. All codes
N92756 Beech
H-18
Fixed-wing, multi-engine Dakota Express LLC
Wilmington, Delaware
Standard 2017-11-14 ValidFAA registration status code V: Valid registration. All codes
N66414 Boeing
B75N1
Fixed-wing, single engine Individual owner
California
Restricted 2017-11-07 ValidFAA registration status code V: Valid registration. All codes
N411BT Boeing
PT-17
Fixed-wing, single engine Individual owner
Rhode Island
Standard 2017-11-02 ValidFAA registration status code V: Valid registration. All codes
N9691H Boeing
B75N1
Fixed-wing, single engine Individual owner
Minnesota
Restricted 2017-11-01 ValidFAA registration status code V: Valid registration. All codes
N620SA Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Cropair Flying Service INC
Cody, Wyoming
Restricted 2017-10-30 ValidFAA registration status code V: Valid registration. All codes
N45279 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Oregon
Restricted 2017-10-27 ValidFAA registration status code V: Valid registration. All codes
N9551Z Beech
C-45H
Fixed-wing, multi-engine Individual owner
Alaska
Standard 2017-10-25 ValidFAA registration status code V: Valid registration. All codes
N2009W Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Individual owner
Alabama
Restricted 2017-10-05 ValidFAA registration status code V: Valid registration. All codes
N33KM Beech
G18S
Fixed-wing, multi-engine Eckles Aircraft LLC
Weslaco, Texas
Standard 2017-10-04 ValidFAA registration status code V: Valid registration. All codes
N65124 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
California
Restricted 2017-09-21 ValidFAA registration status code V: Valid registration. All codes
N25560 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Nevada
Standard 2017-09-19 ValidFAA registration status code V: Valid registration. All codes
N919W Beech
AT-11
Fixed-wing, multi-engine Individual owner
Minnesota
Standard 2017-08-31 ValidFAA registration status code V: Valid registration. All codes
N67789 Consolidated Vultee
BT-13
Fixed-wing, single engine Skyway INC
Wilmington, Delaware
Standard 2017-08-29 ValidFAA registration status code V: Valid registration. All codes
N18E Beech
E18S
Fixed-wing, multi-engine Co-owned owner
California
Standard 2017-08-22 ValidFAA registration status code V: Valid registration. All codes
N59221 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Washington
Standard 2017-08-17 ValidFAA registration status code V: Valid registration. All codes
N8638H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
Alabama
Restricted 2017-08-14 ValidFAA registration status code V: Valid registration. All codes
N21962 Spartan
12
Fixed-wing, single engine Tulsa Air and Space Museum INC
Tulsa, Oklahoma
Experimental 2017-08-09 ValidFAA registration status code V: Valid registration. All codes
N93DG Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Aircraft Marketing & Leasing LLC
Fairbanks, Alaska
Standard 2017-08-01 ValidFAA registration status code V: Valid registration. All codes
N42C Beech
D18S
Fixed-wing, multi-engine Stage One Associates LLC
Oxford, Connecticut
Standard 2017-07-31 ValidFAA registration status code V: Valid registration. All codes
N774H Stearman Aircraft
4D
Fixed-wing, single engine Western Antique Aeroplane & Automobile Museum
Hood River, Oregon
Standard 2017-07-19 ValidFAA registration status code V: Valid registration. All codes
N480 Beech
D17S
Fixed-wing, single engine Individual owner
Idaho
Standard 2017-07-10 ValidFAA registration status code V: Valid registration. All codes
N133BT Consolidated Vultee/Gunderson
BT-13A
Fixed-wing, single engine Aom Aircraft LLC
Wilmington, Delaware
Standard 2017-06-29 ValidFAA registration status code V: Valid registration. All codes
N400KU Beech
G18S
Fixed-wing, multi-engine Individual owner
California
Standard 2017-06-29 ValidFAA registration status code V: Valid registration. All codes
N44573 Beech
C18S
Fixed-wing, multi-engine Adventure North Flying Service LLC
Baudette, Minnesota
Standard 2017-06-28 ValidFAA registration status code V: Valid registration. All codes
N5474 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Hershey Flying Service INC
David City, Nebraska
Restricted 2017-06-21 ValidFAA registration status code V: Valid registration. All codes
N80240 Beech
C-45G
Fixed-wing, multi-engine Beech 18 Holdings LLC
Sheridan, Wyoming
Standard 2017-06-21 ValidFAA registration status code V: Valid registration. All codes
N8629H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Hershey Flying Service INC
David City, Nebraska
Restricted 2017-06-20 ValidFAA registration status code V: Valid registration. All codes
N96DG Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Aircraft Marketing & Leasing LLC
Fairbanks, Alaska
Standard 2017-06-20 ValidFAA registration status code V: Valid registration. All codes
N59154 Boeing
A75N1(PT17)
Fixed-wing, single engine Magnum Aviation LLC
Goff, Kansas
Experimental 2017-06-15 ValidFAA registration status code V: Valid registration. All codes
N802RB Boeing
E75
Fixed-wing, single engine Individual owner
Illinois
Standard 2017-06-13 ValidFAA registration status code V: Valid registration. All codes
N74031 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Georgia
Standard 2017-06-12 ValidFAA registration status code V: Valid registration. All codes
N65228 Boeing
B75N1
Fixed-wing, single engine Individual owner
Texas
Standard 2017-05-24 ValidFAA registration status code V: Valid registration. All codes
N51433 Boeing
A75
Fixed-wing, single engine Individual owner
Colorado
Restricted 2017-05-22 ValidFAA registration status code V: Valid registration. All codes
N4656M Weatherly Aviation Co Inc
620A
Fixed-wing, single engine Co-owned owner
South Dakota
Restricted 2017-05-15 ValidFAA registration status code V: Valid registration. All codes
N75BB Beech
C-45H
Fixed-wing, multi-engine Warbirds 1 LLC
Chattanooga, Tennessee
Standard 2017-05-10 ValidFAA registration status code V: Valid registration. All codes
N375VU Beech
TC-45J
Fixed-wing, multi-engine American Airpower Heritage Flying Museum
Dallas, Texas
Standard 2017-05-09 ValidFAA registration status code V: Valid registration. All codes
N60795 Consolidated Vultee
BT-13A
Fixed-wing, single engine National Wasp Wwii Museum INC
Sweetwater, Texas
Standard 2017-05-08 ValidFAA registration status code V: Valid registration. All codes
N34SE Spartan
7W
Fixed-wing, single engine Claire Aviation
Wilmington, Delaware
Standard 2017-05-04 ValidFAA registration status code V: Valid registration. All codes
N4866V Boeing
E75
Fixed-wing, single engine Individual owner
Illinois
Restricted 2017-05-04 ValidFAA registration status code V: Valid registration. All codes
N49411 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Illinois
Restricted 2017-05-04 ValidFAA registration status code V: Valid registration. All codes
N3717S Beech
E18S
Fixed-wing, multi-engine Co-owned owner
Minnesota
Standard 2017-05-03 ValidFAA registration status code V: Valid registration. All codes
N53298 Beech
D17S
Fixed-wing, single engine Individual owner
Arizona
Standard 2017-05-03 ValidFAA registration status code V: Valid registration. All codes
N3710B Beech
E18S
Fixed-wing, multi-engine Endless Mountain Skydivers INC
Dalton, Pennsylvania
Standard 2017-04-24 ValidFAA registration status code V: Valid registration. All codes
N63884 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Missouri
Standard 2017-04-19 ValidFAA registration status code V: Valid registration. All codes
N6956C Beech
AT-11
Fixed-wing, multi-engine Wings of the North
Eden Prairie, Minnesota
Restricted 2017-04-12 ValidFAA registration status code V: Valid registration. All codes
N79124 Boeing
A75L300
Fixed-wing, single engine Individual owner
Massachusetts
Restricted 2017-04-10 ValidFAA registration status code V: Valid registration. All codes
N56772 Boeing
A75N1(PT17)
Fixed-wing, single engine Heritage Biplane LTD
Canton, Ohio
Standard 2017-04-06 ValidFAA registration status code V: Valid registration. All codes
N57793 Boeing
A75N1(PT17)
Fixed-wing, single engine Boardman Air Service LLC
Henderson, Nebraska
Standard 2017-04-06 ValidFAA registration status code V: Valid registration. All codes
N929DV Beech
E18S
Fixed-wing, multi-engine Individual owner
California
Standard 2017-03-16 ValidFAA registration status code V: Valid registration. All codes
N67066 Dehavilland
DHC-2
Fixed-wing, single engine Zulu Forty One LLC
Anchorage, Alaska
Standard 2017-03-15 ValidFAA registration status code V: Valid registration. All codes
N94DC Dehavilland
DHC-2 MK 1
Fixed-wing, single engine V2 Aviation LLC
Ketchikan, Alaska
Standard 2017-03-13 ValidFAA registration status code V: Valid registration. All codes
N2502 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Individual owner
Washington
Standard 2017-03-08 ValidFAA registration status code V: Valid registration. All codes
N2808 Vultee/Reed Ron
BT-13A
Fixed-wing, single engine Individual owner
South Carolina
Standard 2017-03-03 ValidFAA registration status code V: Valid registration. All codes
N44970 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Alaska
Standard 2017-02-28 ValidFAA registration status code V: Valid registration. All codes
N671JT Dehavilland
DHC-2 MK 1
Fixed-wing, single engine Individual owner
Alaska
Multiple 2017-02-24 ValidFAA registration status code V: Valid registration. All codes
N2832D Beech
D17S
Fixed-wing, single engine Individual owner
North Carolina
Standard 2017-02-21 ValidFAA registration status code V: Valid registration. All codes
N17617 Spartan
7W
Fixed-wing, single engine Co-owned owner
Iowa
Standard 2017-02-15 ValidFAA registration status code V: Valid registration. All codes
N48519 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Buntings Dusting INC
Berlin, Maryland
Restricted 2017-02-15 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.