The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 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

The whole map of how records connect · these connections as data: /graph/engine/pratt-whitney-r-985-series.json.

Aircraft newest certificates first · 1,594

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N1732B Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Arizona
Restricted 1992-10-06 ValidFAA registration status code V: Valid registration. All codes
N68838 Boeing
B75N1
Fixed-wing, single engine Individual owner
Wisconsin
Restricted 1992-09-03 ValidFAA registration status code V: Valid registration. All codes
N55670 Boeing
A75N1(PT17)
Fixed-wing, single engine Stearman Aviation INC
Crawford, Colorado
Standard 1992-08-05 ValidFAA registration status code V: Valid registration. All codes
N7998K Beech
H-18
Fixed-wing, multi-engine Co-owned owner
Vermont
Standard 1992-07-07 ValidFAA registration status code V: Valid registration. All codes
N6680Q Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Hershey Flying Service
David City, Nebraska
Restricted 1992-06-22 ValidFAA registration status code V: Valid registration. All codes
N18575 Beech
D17S
Fixed-wing, single engine Individual owner
Georgia
Standard 1992-05-19 ValidFAA registration status code V: Valid registration. All codes
N5348N Boeing
E75
Fixed-wing, single engine Individual owner
Delaware
Restricted 1992-05-01 ValidFAA registration status code V: Valid registration. All codes
N67769 Beech
D17S
Fixed-wing, single engine Individual owner
Ohio
Standard 1992-03-18 ValidFAA registration status code V: Valid registration. All codes
N29CA Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Standard 1992-03-06 ValidFAA registration status code V: Valid registration. All codes
N69881 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Restricted 1992-02-21 ValidFAA registration status code V: Valid registration. All codes
N811G Boeing
A75N1(PT17)
Fixed-wing, single engine Tanglefoot Wing and Wheel CO
Coolin, Idaho
Standard 1992-01-18 ValidFAA registration status code V: Valid registration. All codes
N404H Beech
G18S
Fixed-wing, multi-engine Mid Atlantic Air Museum
Reading, Pennsylvania
Standard 1992-01-08 ValidFAA registration status code V: Valid registration. All codes
N456N Dehavilland
DHC-2
Fixed-wing, single engine Jw Limited
Seattle, Washington
Standard 1992-01-06 ValidFAA registration status code V: Valid registration. All codes
N55225 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Restricted 1991-12-26 ValidFAA registration status code V: Valid registration. All codes
N320A Beech
AT-11
Fixed-wing, multi-engine American Airpower Heritage Fly Musm
Dallas, Texas
Standard 1991-09-06 ValidFAA registration status code V: Valid registration. All codes
N52411 Consolidated Vultee
BT-13A
Fixed-wing, single engine American Airpower Heritage Flying
Dallas, Texas
Standard 1991-09-06 ValidFAA registration status code V: Valid registration. All codes
N61BT Convair
BT-13A
Fixed-wing, single engine American Airpower Heritage Flying Mu
Dallas, Texas
Standard 1991-09-06 ValidFAA registration status code V: Valid registration. All codes
N1387V Boeing
E75
Fixed-wing, single engine American Airpower Heritage Flyingmu
Dallas, Texas
Experimental 1991-09-05 ValidFAA registration status code V: Valid registration. All codes
N40074 Beech
C-45H
Fixed-wing, multi-engine American Airpower Heritage Flying Museum INC
Dallas, Texas
Standard 1991-09-05 ValidFAA registration status code V: Valid registration. All codes
N79AG Beech
D18S
Fixed-wing, multi-engine American Airpower Heritage Fly Musm
Dallas, Texas
Standard 1991-09-05 ValidFAA registration status code V: Valid registration. All codes
N53084 Boeing
D75N1
Fixed-wing, single engine Individual owner
Texas
Restricted 1991-07-29 ValidFAA registration status code V: Valid registration. All codes
N6DF Grumman
G-21A
Fixed-wing, multi-engine Individual owner
Idaho
Standard 1991-07-25 ValidFAA registration status code V: Valid registration. All codes
N46455 Weatherly Aviation Co Inc
620A
Fixed-wing, single engine Page Aerial Service INC
Rochelle, Illinois
Restricted 1991-06-06 ValidFAA registration status code V: Valid registration. All codes
N7740C Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Standard 1991-02-19 ValidFAA registration status code V: Valid registration. All codes
N73355 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Minnesota
Restricted 1991-01-25 ValidFAA registration status code V: Valid registration. All codes
N52947 Howard Aircraft
DGA-15P
Fixed-wing, single engine Museum of Flight Foundation
Seattle, Washington
Standard 1990-12-07 ValidFAA registration status code V: Valid registration. All codes
N48635 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine AG Aviation Service INC
Elkhorn, Wisconsin
Restricted 1990-08-20 ValidFAA registration status code V: Valid registration. All codes
N68853 Boeing
A75N1(PT17)
Fixed-wing, single engine Flying Circus Airshow INC
Bealeton, Virginia
Experimental 1990-08-15 ValidFAA registration status code V: Valid registration. All codes
N4761V Boeing
A75
Fixed-wing, single engine Individual owner
Kentucky
Restricted 1990-08-01 ValidFAA registration status code V: Valid registration. All codes
N28DH Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Individual owner
Alaska
Restricted 1990-06-13 ValidFAA registration status code V: Valid registration. All codes
N4444Z Dehavilland
DHC-2
Fixed-wing, single engine Rustair INC
Anchorage, Alaska
Standard 1990-04-13 ValidFAA registration status code V: Valid registration. All codes
N98EL Dehavilland-Kenmore
DHC-2
Fixed-wing, single engine Alaskas Enchanted Lake Lodge INC
King Salmon, Alaska
Restricted 1990-03-30 ValidFAA registration status code V: Valid registration. All codes
N2740X Dehavilland-Kenmore
DHC-2
Fixed-wing, single engine Rustair INC
Anchorage, Alaska
Standard 1990-03-26 ValidFAA registration status code V: Valid registration. All codes
N18777 Beech
D17S
Fixed-wing, single engine Individual owner
Washington
Standard 1990-03-20 ValidFAA registration status code V: Valid registration. All codes
N75100 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Oregon
Restricted 1990-03-15 ValidFAA registration status code V: Valid registration. All codes
N18028 Beech
D17S
Fixed-wing, single engine Individual owner
Standard 1990-02-27 ValidFAA registration status code V: Valid registration. All codes
N1053 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Individual owner
Alaska
Standard 1989-08-30 ValidFAA registration status code V: Valid registration. All codes
N5582N Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Michigan
Standard 1989-08-21 ValidFAA registration status code V: Valid registration. All codes
N80306 Beech
G17S
Fixed-wing, single engine Individual owner
Colorado
Standard 1989-07-26 ValidFAA registration status code V: Valid registration. All codes
N7856 Grumman
G-164A
Fixed-wing, single engine Tri State Aero INC
Martinsburg, West Virginia
Standard 1989-07-20 ValidFAA registration status code V: Valid registration. All codes
N485W Stearman Aircraft
4E
Fixed-wing, single engine Individual owner
Washington
Standard 1989-05-18 ValidFAA registration status code V: Valid registration. All codes
N5371G Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine King Air INC
Naknek, Alaska
Standard 1989-02-06 ValidFAA registration status code V: Valid registration. All codes
N49997 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Michigan
Restricted 1989-01-24 ValidFAA registration status code V: Valid registration. All codes
N48559 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Fountain INC
Moscow, Idaho
Restricted 1988-12-16 ValidFAA registration status code V: Valid registration. All codes
N87693 Beech
SNB-5
Fixed-wing, multi-engine Combat Air Museum INC
Topeka, Kansas
None on file 1988-11-02 ValidFAA registration status code V: Valid registration. All codes
N45218 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
New Hampshire
Restricted 1988-03-24 ValidFAA registration status code V: Valid registration. All codes
N16M Beech
D17S
Fixed-wing, single engine Individual owner
Colorado
Standard 1988-02-11 ValidFAA registration status code V: Valid registration. All codes
N6728Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine AG Flyers INC
Torrington, Wyoming
Restricted 1987-11-04 ValidFAA registration status code V: Valid registration. All codes
N54K Beech
E18S
Fixed-wing, multi-engine Individual owner
Florida
Standard 1987-09-17 ValidFAA registration status code V: Valid registration. All codes
N909R Boeing
E75
Fixed-wing, single engine Individual owner
Virginia
Standard 1987-09-04 ValidFAA registration status code V: Valid registration. All codes
N4910N Beech
C18S
Fixed-wing, multi-engine Individual owner
Minnesota
Standard 1987-08-24 ValidFAA registration status code V: Valid registration. All codes
N63539 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Restricted 1987-08-24 ValidFAA registration status code V: Valid registration. All codes
N16879 Fairchild
F-45
Fixed-wing, single engine Individual owner
Washington
Standard 1987-04-01 ValidFAA registration status code V: Valid registration. All codes
N4001A Beech
AT-11
Fixed-wing, multi-engine Allen Chorman & Son INC
Milton, Delaware
Restricted 1987-02-04 ValidFAA registration status code V: Valid registration. All codes
N5552A Beech
C18S
Fixed-wing, multi-engine Allen Chorman & Son INC
Milton, Delaware
Multiple 1987-02-03 ValidFAA registration status code V: Valid registration. All codes
N916X Grumman
G-164A
Fixed-wing, single engine Co-owned owner
California
Restricted 1987-01-28 ValidFAA registration status code V: Valid registration. All codes
N12719 Beech
UC-45J
Fixed-wing, multi-engine Individual owner
Texas
Standard 1987-01-27 ValidFAA registration status code V: Valid registration. All codes
N2625 Beech
C-45H
Fixed-wing, multi-engine Aero Specialists INC
Eloy, Arizona
Standard 1987-01-22 ValidFAA registration status code V: Valid registration. All codes
N872H Boeing
100
Fixed-wing, single engine Museum of Flight Foundation
Seattle, Washington
None on file 1987-01-21 ValidFAA registration status code V: Valid registration. All codes
N53233 Boeing
D75N1
Fixed-wing, single engine Dasan Farms INC.
Grimes, California
Restricted 1986-12-30 ValidFAA registration status code V: Valid registration. All codes
N5279N Boeing
E75
Fixed-wing, single engine Planes of Fame Air Museum
Chino, California
Experimental 1986-12-29 ValidFAA registration status code V: Valid registration. All codes
N9539 Beech
3NM
Fixed-wing, multi-engine Individual owner
Louisiana
Standard 1986-11-05 ValidFAA registration status code V: Valid registration. All codes
N48534 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine AG Aviation Service INC
Elkhorn, Wisconsin
Restricted 1986-08-26 ValidFAA registration status code V: Valid registration. All codes
N608U Grumman
G-164
Fixed-wing, single engine Individual owner
New Jersey
Restricted 1986-08-14 ValidFAA registration status code V: Valid registration. All codes
N1276W Weatherly
201B
Fixed-wing, single engine Page Aerial Service INC
Rochelle, Illinois
Restricted 1986-07-10 ValidFAA registration status code V: Valid registration. All codes
N97EL Dehavilland
DHC-2
Fixed-wing, single engine Alaskas Enchanted Lake Lodge INC
King Salmon, Alaska
Restricted 1986-06-17 ValidFAA registration status code V: Valid registration. All codes
N69915 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
New York
Standard 1986-01-01 ValidFAA registration status code V: Valid registration. All codes
N48677 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine AG Aviation Service INC
Elkhorn, Wisconsin
Restricted 1985-09-10 ValidFAA registration status code V: Valid registration. All codes
N56260 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Arizona
Restricted 1985-08-16 ValidFAA registration status code V: Valid registration. All codes
N6650Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Lewis Flying Maintenance Svc INC
Morse, Louisiana
Restricted 1985-08-09 ValidFAA registration status code V: Valid registration. All codes
N9766Z Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Kenmore Air Harbor LLC
Kenmore, Washington
Standard 1985-05-20 ValidFAA registration status code V: Valid registration. All codes
N56205 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Standard 1985-01-09 ValidFAA registration status code V: Valid registration. All codes
N900KA Dehavilland
DHC-2 MK.I
Fixed-wing, single engine Kenmore Air Harbor LLC
Kenmore, Washington
Standard 1984-11-27 ValidFAA registration status code V: Valid registration. All codes
N99801 Beech
H-18S
Fixed-wing, multi-engine Sunshine Aero Industries INC
Crestview, Florida
Restricted 1984-11-02 ValidFAA registration status code V: Valid registration. All codes
N1149V Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Texas
Standard 1984-10-09 ValidFAA registration status code V: Valid registration. All codes
N200KU Beech
TC-45J
Fixed-wing, multi-engine Military Aircraft Restoration CORP
Costa Mesa, California
Restricted 1984-09-05 ValidFAA registration status code V: Valid registration. All codes
N5162G Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Individual owner
Alaska
Restricted 1984-06-25 ValidFAA registration status code V: Valid registration. All codes
N48494 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Lewis Flying & Maintenance Svc
Morse, Louisiana
Restricted 1984-03-27 ValidFAA registration status code V: Valid registration. All codes
N7067 Dehavilland
DHC-2-L-20
Fixed-wing, single engine State of Alaska
Kodiak, Alaska
Standard 1984-01-30 ValidFAA registration status code V: Valid registration. All codes
N4783V Boeing
75
Fixed-wing, single engine Orvin Sanden INC
Wyndmere, North Dakota
Restricted 1983-09-06 ValidFAA registration status code V: Valid registration. All codes
N450 Boeing
A75L300
Fixed-wing, single engine Individual owner
New Jersey
Standard 1983-08-30 ValidFAA registration status code V: Valid registration. All codes
N4760V Boeing
B75N1
Fixed-wing, single engine Individual owner
Washington
Standard 1983-04-04 ValidFAA registration status code V: Valid registration. All codes
N68828 Boeing
E75
Fixed-wing, single engine Individual owner
California
Experimental 1983-02-17 ValidFAA registration status code V: Valid registration. All codes
N56944 Boeing
IB75A
Fixed-wing, single engine Individual owner
Oregon
Restricted 1983-01-28 ValidFAA registration status code V: Valid registration. All codes
N8958H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
New Jersey
Restricted 1982-12-21 ValidFAA registration status code V: Valid registration. All codes
N9936H Beech
D17S
Fixed-wing, single engine Co-owned owner
Vermont
Standard 1982-10-04 ValidFAA registration status code V: Valid registration. All codes
N60277 Consolidated Vultee
BT-13A
Fixed-wing, single engine Mid Atlantic Air Museum INC
Reading, Pennsylvania
Standard 1982-09-30 ValidFAA registration status code V: Valid registration. All codes
N5303 Grumman
G-164A
Fixed-wing, single engine Valley Sprayers INC
Park River, North Dakota
Restricted 1982-08-19 ValidFAA registration status code V: Valid registration. All codes
N8623H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
Alabama
Restricted 1982-06-23 ValidFAA registration status code V: Valid registration. All codes
N13993 Spartan
7W
Fixed-wing, single engine Eaa Aviation Foundation INC
Oshkosh, Wisconsin
Standard 1982-06-14 ValidFAA registration status code V: Valid registration. All codes
N59637 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Missouri
Restricted 1982-06-02 ValidFAA registration status code V: Valid registration. All codes
N949X Grumman
G-164A
Fixed-wing, single engine Valley Sprayers INC
Park River, North Dakota
Restricted 1982-04-30 ValidFAA registration status code V: Valid registration. All codes
N46999 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Wisconsin
Standard 1982-01-14 ValidFAA registration status code V: Valid registration. All codes
N20753 Beech
D17S
Fixed-wing, single engine Beechcraft Heritage Museum INC
Tullahoma, Tennessee
Standard 1981-10-01 ValidFAA registration status code V: Valid registration. All codes
N56719 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Kansas
Restricted 1981-07-23 ValidFAA registration status code V: Valid registration. All codes
N45047 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Oregon
Restricted 1981-06-16 ValidFAA registration status code V: Valid registration. All codes
N6679Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
South Carolina
Restricted 1980-09-30 ValidFAA registration status code V: Valid registration. All codes
N1112M Beech
D17S
Fixed-wing, single engine Individual owner
Illinois
Standard 1980-08-22 ValidFAA registration status code V: Valid registration. All codes
N296Y Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Indiana
Standard 1980-06-02 ValidFAA registration status code V: Valid registration. All codes
N278WW Beech
D17S
Fixed-wing, single engine Wedell Williams Memorial Foundations
Patterson, Louisiana
Standard 1980-01-03 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 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.