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

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
N12146 Stinson
W
Fixed-wing, single engine Western Antique Aeroplane & Automobile Museum
Hood River, Oregon
Standard 2014-12-03 ValidFAA registration status code V: Valid registration. All codes
N48505 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Minnesota
Restricted 2014-12-02 ValidFAA registration status code V: Valid registration. All codes
N450JW Boeing
IB75A
Fixed-wing, single engine Individual owner
Virginia
Experimental 2014-11-25 ValidFAA registration status code V: Valid registration. All codes
N58986 Boeing
E75
Fixed-wing, single engine N58986 LLC
Carson City, Nevada
Restricted 2014-11-19 ValidFAA registration status code V: Valid registration. All codes
N371SD Boeing
A75N1(PT17)
Fixed-wing, single engine N371Sd LLC
Carson City, Nevada
Standard 2014-11-13 ValidFAA registration status code V: Valid registration. All codes
N6527K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Nebraska
Restricted 2014-11-12 ValidFAA registration status code V: Valid registration. All codes
N9137R Consolidated Vultee
BT-13A
Fixed-wing, single engine Co-owned owner
Ohio
Standard 2014-10-17 ValidFAA registration status code V: Valid registration. All codes
N94H Beech
D18S
Fixed-wing, multi-engine D U Aircraft Leasing INC
Green Bay, Wisconsin
Standard 2014-10-03 ValidFAA registration status code V: Valid registration. All codes
N90460 Beech
D18S
Fixed-wing, multi-engine Mitchell Aircraft Components INC
Borrego Springs, California
Standard 2014-09-24 ValidFAA registration status code V: Valid registration. All codes
N71502 Consolidated Vultee
BT-13B (SNV-2)
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2014-09-23 ValidFAA registration status code V: Valid registration. All codes
N6671C Beech
AT-11
Fixed-wing, multi-engine Beechcraft Heritage Museum
Tullahoma, Tennessee
Restricted 2014-09-18 ValidFAA registration status code V: Valid registration. All codes
N55464 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
West Virginia
Multiple 2014-08-13 ValidFAA registration status code V: Valid registration. All codes
N7826L Beech
TC-45G
Fixed-wing, multi-engine Tri-State Warbird Museum
Batavia, Ohio
Restricted 2014-08-06 ValidFAA registration status code V: Valid registration. All codes
N343WB Dehavilland
BEAVER U-6A
Fixed-wing, single engine Sportsmans Leasing LLC
Anchorage, Alaska
Standard 2014-07-25 ValidFAA registration status code V: Valid registration. All codes
N8779H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
South Dakota
Restricted 2014-07-15 ValidFAA registration status code V: Valid registration. All codes
N69695 Consolidated Vultee
BT-13A
Fixed-wing, single engine C & G Air
Wilmington, Delaware
Standard 2014-07-03 ValidFAA registration status code V: Valid registration. All codes
N157AK Dehavilland
BEAVER DHC-2
Fixed-wing, single engine N157Ak LLC
Wasilla, Alaska
Standard 2014-06-24 ValidFAA registration status code V: Valid registration. All codes
N700NL Dehavilland
DHC-2 MK 1
Fixed-wing, single engine Newhalen Lodge INC
Anchorage, Alaska
Standard 2014-06-18 ValidFAA registration status code V: Valid registration. All codes
N107B Dehavilland
DHC-2
Fixed-wing, single engine Komro International LLC
Durand, Wisconsin
Standard 2014-06-16 ValidFAA registration status code V: Valid registration. All codes
N41005 Beech
UC-45J
Fixed-wing, multi-engine Individual owner
New York
None on file 2014-06-16 ValidFAA registration status code V: Valid registration. All codes
N53125 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Standard 2014-06-16 ValidFAA registration status code V: Valid registration. All codes
N97B Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2014-06-05 ValidFAA registration status code V: Valid registration. All codes
N80036 Beech
D18S
Fixed-wing, multi-engine Beechcraft Heritage Museum
Tullahoma, Tennessee
Standard 2014-05-29 ValidFAA registration status code V: Valid registration. All codes
N80316 Beech
G17S
Fixed-wing, single engine International Trading Company of Yukon INC
Oklahoma City, Oklahoma
Standard 2014-05-28 ValidFAA registration status code V: Valid registration. All codes
N401SJ Grumman
G-21A
Fixed-wing, multi-engine Individual owner
California
Standard 2014-05-22 ValidFAA registration status code V: Valid registration. All codes
N4581N Boeing
E75
Fixed-wing, single engine N84Dt LLC
Missoula, Montana
Experimental 2014-05-21 ValidFAA registration status code V: Valid registration. All codes
N53482 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Restricted 2014-05-21 ValidFAA registration status code V: Valid registration. All codes
N1074N Boeing
E75
Fixed-wing, single engine Rare Aircraft LTD
Faribault, Minnesota
Restricted 2014-05-20 ValidFAA registration status code V: Valid registration. All codes
N3723C Boeing
E75N1
Fixed-wing, single engine Rare Aircraft LTD
Faribault, Minnesota
Restricted 2014-05-20 ValidFAA registration status code V: Valid registration. All codes
N4749V Boeing
A75L3
Fixed-wing, single engine Rare Aircraft LTD
Faribault, Minnesota
Standard 2014-05-20 ValidFAA registration status code V: Valid registration. All codes
N55523 Boeing
A75N1
Fixed-wing, single engine Rare Aircraft LTD
Faribault, Minnesota
Restricted 2014-05-20 ValidFAA registration status code V: Valid registration. All codes
N68996 Boeing
N2S-3
Fixed-wing, single engine Rare Aircraft LTD
Faribault, Minnesota
Standard 2014-05-20 ValidFAA registration status code V: Valid registration. All codes
N8326K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Cw Equipment Rentals INC
Biggs, California
Restricted 2014-05-16 ValidFAA registration status code V: Valid registration. All codes
N40E Beech
D17S
Fixed-wing, single engine Individual owner
Texas
Standard 2014-05-15 ValidFAA registration status code V: Valid registration. All codes
N9946 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Individual owner
California
Restricted 2014-05-02 ValidFAA registration status code V: Valid registration. All codes
N44843 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Alaska
Standard 2014-04-30 ValidFAA registration status code V: Valid registration. All codes
N61818 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Virginia
Standard 2014-04-30 ValidFAA registration status code V: Valid registration. All codes
N241K Beech
D17S
Fixed-wing, single engine Individual owner
Arizona
Standard 2014-04-10 ValidFAA registration status code V: Valid registration. All codes
N75085 Convair
BT-13
Fixed-wing, single engine Individual owner
New Mexico
Restricted 2014-04-09 ValidFAA registration status code V: Valid registration. All codes
N90393 Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Skyline Aviation LLC
Lewistown, Montana
Restricted 2014-04-07 ValidFAA registration status code V: Valid registration. All codes
N310NR Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine My Holdings INC
Anchorage, Alaska
Restricted 2014-04-04 ValidFAA registration status code V: Valid registration. All codes
N44750 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Abidance INC
Winthrop, Washington
Restricted 2014-04-04 ValidFAA registration status code V: Valid registration. All codes
N45185 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Abidance INC
Winthrop, Washington
Restricted 2014-04-04 ValidFAA registration status code V: Valid registration. All codes
N6LU Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine My Holdings INC
Anchorage, Alaska
Restricted 2014-04-04 ValidFAA registration status code V: Valid registration. All codes
N56915 Convair
BT-13
Fixed-wing, single engine Co-owned owner
California
Standard 2014-04-02 ValidFAA registration status code V: Valid registration. All codes
N54039 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Washington
Experimental 2014-03-28 ValidFAA registration status code V: Valid registration. All codes
N428AF Dehavilland
DHC-2-L-20
Fixed-wing, single engine Rma Aviation INC
Deer Lodge, Montana
Multiple 2014-03-17 ValidFAA registration status code V: Valid registration. All codes
N9645 Ford
5-AT-B
Fixed-wing, multi-engine Liberty Aviation Museum INC
Port Clinton, Ohio
Standard 2014-03-13 ValidFAA registration status code V: Valid registration. All codes
N44G Beech
G17S
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2014-03-12 ValidFAA registration status code V: Valid registration. All codes
N6754Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Texas
Restricted 2014-03-11 ValidFAA registration status code V: Valid registration. All codes
N158AK Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine N158Ak LLC
Wasilla, Alaska
Standard 2014-03-07 ValidFAA registration status code V: Valid registration. All codes
N602AK Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine N602Ak LLC
Wasilla, Alaska
Standard 2014-03-07 ValidFAA registration status code V: Valid registration. All codes
N1379V Boeing
E75
Fixed-wing, single engine Individual owner
Arizona
Restricted 2014-02-18 ValidFAA registration status code V: Valid registration. All codes
N9470H Beech
D17S
Fixed-wing, single engine Deer Creek Dusters INC
Rolling Fork, Mississippi
Standard 2014-01-24 ValidFAA registration status code V: Valid registration. All codes
N1999R Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Ras INC
Danbury, Nebraska
Restricted 2014-01-08 ValidFAA registration status code V: Valid registration. All codes
N20263 Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Ras INC
Danbury, Nebraska
Restricted 2014-01-08 ValidFAA registration status code V: Valid registration. All codes
N7811 Grumman
G-21A
Fixed-wing, multi-engine Evergreen Aviation & Space Museum
Mcninnville, Oregon
Multiple 2014-01-07 ValidFAA registration status code V: Valid registration. All codes
N18LG Beech
E18S
Fixed-wing, multi-engine Individual owner
California
Standard 2014-01-06 ValidFAA registration status code V: Valid registration. All codes
N30G Beech
D18S
Fixed-wing, multi-engine AG Air INC
Matthews, Missouri
Experimental 2014-01-02 ValidFAA registration status code V: Valid registration. All codes
N51028 Boeing
A75N1(PT17)
Fixed-wing, single engine Purkinje LTD LLC
Wilmington, Delaware
Standard 2013-12-31 ValidFAA registration status code V: Valid registration. All codes
N14413 Beech
B17R
Fixed-wing, single engine Central Air Service INC
Lewistown, Montana
Standard 2013-12-26 ValidFAA registration status code V: Valid registration. All codes
N9311H Boeing
E75N1
Fixed-wing, single engine Barnstormer Squadron CORP
Mesa, Arizona
Restricted 2013-12-20 ValidFAA registration status code V: Valid registration. All codes
N2633 Lockheed
12A
Fixed-wing, multi-engine Co-owned owner
Vermont
Standard 2013-12-17 ValidFAA registration status code V: Valid registration. All codes
N49955 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2013-12-12 ValidFAA registration status code V: Valid registration. All codes
N178RM Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine D & B Aircraft Leasing LLC
Anchorage, Alaska
Multiple 2013-12-04 ValidFAA registration status code V: Valid registration. All codes
N302BL Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine D&B Aircraft Leasing LLC
Anchorage, Alaska
Multiple 2013-12-04 ValidFAA registration status code V: Valid registration. All codes
N971MM Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine D & B Aircraft Leasing LLC
Anchorage, Alaska
Multiple 2013-12-04 ValidFAA registration status code V: Valid registration. All codes
N4675N Howard Aircraft
DGA-15P
Fixed-wing, single engine Sharp Aviation LLC
Pauls Valley, Oklahoma
Standard 2013-11-14 ValidFAA registration status code V: Valid registration. All codes
N55PR Boeing
E75N1
Fixed-wing, single engine Pro-Form LLC
Wilmington, Delaware
Standard 2013-11-04 ValidFAA registration status code V: Valid registration. All codes
N45178 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Washington
Restricted 2013-10-24 ValidFAA registration status code V: Valid registration. All codes
N6583 Grumman
G-164A
Fixed-wing, single engine Individual owner
Montana
Restricted 2013-10-24 ValidFAA registration status code V: Valid registration. All codes
N17679 Beech
D17S
Fixed-wing, single engine Individual owner
Indiana
Standard 2013-09-16 ValidFAA registration status code V: Valid registration. All codes
N14048 Waco
S3HD
Fixed-wing, single engine Individual owner
New Hampshire
Standard 2013-08-20 ValidFAA registration status code V: Valid registration. All codes
N8716H Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine M & K Flying Service INC
Hot Springs, Arkansas
Restricted 2013-08-02 ValidFAA registration status code V: Valid registration. All codes
N63282 Consolidated Vultee
BT-13B (SNV-2)
Fixed-wing, single engine American Airpower Heritage Flying Museum
Dallas, Texas
Standard 2013-08-01 ValidFAA registration status code V: Valid registration. All codes
N703 Grumman
G-21A
Fixed-wing, multi-engine B-81 LLC
Anchorage, Alaska
Standard 2013-07-22 ValidFAA registration status code V: Valid registration. All codes
N75872 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Florida
Restricted 2013-07-15 ValidFAA registration status code V: Valid registration. All codes
N60414 Boeing
A75
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2013-07-11 ValidFAA registration status code V: Valid registration. All codes
N76A Beech
E18S
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Standard 2013-06-06 ValidFAA registration status code V: Valid registration. All codes
N17082 Beech
D17S
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2013-06-04 ValidFAA registration status code V: Valid registration. All codes
N910AS Dehavilland
DHC-2
Fixed-wing, single engine D & B Aircraft Leasing LLC
Anchorage, Alaska
Standard 2013-04-11 ValidFAA registration status code V: Valid registration. All codes
N45163 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Bi-Plane Adventures INC
Kennesaw, Georgia
Standard 2013-04-03 ValidFAA registration status code V: Valid registration. All codes
N145SC Beech
SNB-1
Fixed-wing, multi-engine Individual owner
Indiana
Standard 2013-04-02 ValidFAA registration status code V: Valid registration. All codes
N9473R Snow
S2C
Fixed-wing, single engine Individual owner
Arizona
Restricted 2013-04-02 ValidFAA registration status code V: Valid registration. All codes
N149W Boeing
E75
Fixed-wing, single engine Individual owner
New Jersey
Restricted 2013-03-29 ValidFAA registration status code V: Valid registration. All codes
N26J Howard Aircraft
DGA-15P
Fixed-wing, single engine Aircraft Marketing & Leasing LLC
Fairbanks, Alaska
Standard 2013-03-28 ValidFAA registration status code V: Valid registration. All codes
N6782L Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Seawind Aviation INC
Ketchikan, Alaska
Standard 2013-03-28 ValidFAA registration status code V: Valid registration. All codes
N92SL Beech
D17S
Fixed-wing, single engine Apd LLC
Madison, Ohio
Standard 2013-03-21 ValidFAA registration status code V: Valid registration. All codes
N600NL Dehavilland
BEAVER U-6A
Fixed-wing, single engine Newhalen Lodge INC
Anchorage, Alaska
Standard 2013-03-07 ValidFAA registration status code V: Valid registration. All codes
N900NL Dehavilland
DHC-2
Fixed-wing, single engine Newhalen Lodge INC
Anchorage, Alaska
Standard 2013-03-07 ValidFAA registration status code V: Valid registration. All codes
N77BA Dehavilland
DHC-2
Fixed-wing, single engine Beluga Air LLC
Homer, Alaska
Standard 2013-03-05 ValidFAA registration status code V: Valid registration. All codes
N4621A Weatherly
620
Fixed-wing, single engine Individual owner
Nebraska
Restricted 2013-02-20 ValidFAA registration status code V: Valid registration. All codes
N28V Born Again Restorations
S-38B
Fixed-wing, multi-engine Individual owner
Florida
Experimental 2013-01-25 ValidFAA registration status code V: Valid registration. All codes
N93 Convair
BT-13A
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Standard 2013-01-23 ValidFAA registration status code V: Valid registration. All codes
N875E Boeing
204
Fixed-wing, single engine Individual owner
Virginia
Standard 2013-01-18 ValidFAA registration status code V: Valid registration. All codes
N16085 Lockheed
12A
Fixed-wing, multi-engine Individual owner
Florida
Standard 2013-01-16 ValidFAA registration status code V: Valid registration. All codes
N4442 Laird
LC-RW300
Fixed-wing, single engine Aircraft Guaranty CORP Trustee
Oklahoma City, Oklahoma
Standard 2013-01-16 ValidFAA registration status code V: Valid registration. All codes
N404T Beech
E18S-9700
Fixed-wing, multi-engine Greatest Generation Naval Museum
Colorado Springs, Colorado
Standard 2013-01-11 ValidFAA registration status code V: Valid registration. All codes
N7MB Beech
E18S
Fixed-wing, multi-engine Individual owner
Texas
Standard 2013-01-03 ValidFAA registration status code V: Valid registration. All codes
N52282 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Kansas
Standard 2012-12-28 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.